Car roof cargo carriers add luggage space without replacing your vehicle, but the right choice depends on how much you carry, how your roof is equipped, and how much setup you can manage. My best overall pick is the FIVKLEMNZ 21-Cubic-Foot Waterproof Soft Rooftop Cargo Carrier for its middle-ground capacity, while the Mockins 35-cubic-foot bag suits buyers who need maximum room and the FIVKLEMNZ 15-cubic-foot bag is a more compact alternative. The main tradeoffs are capacity versus fit, soft-shell convenience versus weather and wear exposure, and roof-rack compatibility versus door-frame mounting. Read on for the full comparison, selection criteria, and fit guidance before choosing a carrier.
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Key Takeaways
- 21 cubic feet is the lineup’s central capacity point: multiple brands offer bags around this size, so fit, attachment method, and construction details matter more than capacity alone.
- The Mockins 35-cubic-foot bag is the outlier for space: its large dimensions may suit bulky family luggage, but it calls for careful roof-fit checks and can be more cumbersome to load and secure.
- The 15-cubic-foot FIVKLEMNZ and Asinking options favor compact loads: they can make more sense when a larger bag would overhang the roof or go mostly unused.
- Brand names and similar capacities do not establish identical fit: confirm each bag’s mounting approach, vehicle roof setup, and included hardware before buying.
- Waterproof claims do not remove the need for careful packing: closures, seams, and exposure vary, so bagging sensitive belongings inside the carrier is a prudent backup.
| FIVKLEMNZ 21-Cubic-Foot Waterproof Soft Rooftop Cargo Carrier |  | Best All-Rounder | Capacity: 21 cubic feet | Dimensions: 52 x 40 x 18 inches; another listed height is 17 inches | Material: 840D PVC; product details also list Oxford cloth | VIEW LATEST PRICE | See Our Full Breakdown |
| Mockins XL Soft-Shell Rooftop Cargo Carrier Bag, 35 Cu. Ft., Black, 60 x 42 x 24 in. |  | Best for Maximum Capacity | Capacity: 35 cubic feet | Dimensions: 60 x 42 x 24 inches | Maximum load: 250 lbs | VIEW LATEST PRICE | See Our Full Breakdown |
| FIVKLEMNZ Waterproof Rooftop Cargo Carrier Bag, 15 cu ft |  | Best Compact Pick | Capacity: 15 cubic feet | Dimensions: 46 x 34 x 17 inches | Weight: 6.6 pounds | VIEW LATEST PRICE | See Our Full Breakdown |
| Asinking Waterproof Rooftop Cargo Carrier Bag, 21 Cubic Feet |  | Best for Vehicle-Surface Protection | Capacity: 21 cubic feet | Material: 900D PVC | Dimensions when full: 52 x 40 x 18 inches | VIEW LATEST PRICE | See Our Full Breakdown |
| FIVKLEMNZ 30-Cubic-Foot Waterproof Soft Rooftop Cargo Carrier |  | Best for Large Loads Without a Rack | Capacity: 30 cubic feet | Dimensions: 60 x 43 x 20 inches in description; 60 x 60 x 20 inches in item dimensions | Weight: 5.44 kg | VIEW LATEST PRICE | See Our Full Breakdown |
| Asinking 21-Cubic-Foot Waterproof Rooftop Cargo Carrier Bag |  | Best for Maximum Soft-Bag Capacity | Capacity: 21 cubic feet | Material: 840D PVC | Water resistance: Waterproof | VIEW LATEST PRICE | See Our Full Breakdown |
| MIDABAO 20-Cubic-Foot Waterproof Car Roof Cargo Carrier |  | Best Value for Straightforward Capacity | Capacity: 20 cubic feet | Dimensions: 51.1 x 39 x 17 in | Weight: 3.94 kg | VIEW LATEST PRICE | See Our Full Breakdown |
| AlltoAuto Waterproof Rooftop Cargo Bag, 21 Cu. Ft. |  | Best for Seam-Focused Weather Protection | Capacity: 21 cubic feet | Dimensions: 52 x 40 x 18 in | Material: 840D PVC tarpaulin | VIEW LATEST PRICE | See Our Full Breakdown |
| MeeFar XBEEK 20-Cubic-Foot Waterproof Rooftop Cargo Bag |  | Best for Compact Storage Between Trips | Model: XBEEK MF-1002 | Capacity: 20 cubic feet | Dimensions: 51 x 40 x 17 in | VIEW LATEST PRICE | See Our Full Breakdown |
| Asinking 15-Cubic-Foot Waterproof Car Roof Cargo Carrier |  | Best for Smaller Loads and Easier Fit | Capacity: 15 cubic feet | Material: 840D PVC | Water resistance: Waterproof | VIEW LATEST PRICE | See Our Full Breakdown |
| MeeFar Waterproof Rooftop Cargo Bag, 21 Cubic Feet |  | Best for Broad Vehicle Compatibility | Capacity: 21 cubic feet | Dimensions: 47 × 35 × 22 in | Weight: 4.88 kg | VIEW LATEST PRICE | See Our Full Breakdown |
| Asinking 21-Cubic-Foot Waterproof Rooftop Cargo Carrier Bag |  | Best for Foldaway Storage | Capacity: 21 cubic feet | Dimensions: 52 × 40 × 18 in | Weight: 4.71 kg | VIEW LATEST PRICE | See Our Full Breakdown |
| Car Roof Rooftop Cargo Carrier Bag – Waterproof 21 cu ft Soft-Shell Large Roof Top Bag for SUVs & Trucks (Black/Gray) |  | Best for UV and Dust Exposure | Capacity: 21 cubic feet | Material: 840D weatherproof PVC fabric | Fit: Universal; vehicles with or without roof racks | VIEW LATEST PRICE | See Our Full Breakdown |
| TANX Waterproof Roof Cargo Bag, 21 Cubic Feet |  | Best for More Tie-Down Points | Capacity: 21 cubic feet | Dimensions: 52 × 40 × 17 in | Weight: 4.25 kg | VIEW LATEST PRICE | See Our Full Breakdown |
| Asinking Waterproof Rooftop Cargo Carrier Bag, 20 Cubic Feet |  | Best for a Slightly Smaller Load | Capacity: 20 cubic feet | Dimensions: 40 × 52 in | Material: 900D double-coated PVC laminated tarpaulin | VIEW LATEST PRICE | See Our Full Breakdown |
| car roof cargo carrier | Capacity | Material | Dimensions | Weight |
|---|---|---|---|---|
| FIVKLEMNZ 21-Cubic-Foot Waterp | 21 cubic feet | 840D PVC; product details also list Oxford cloth | 52 x 40 x 18 inches; another listed height is 17 inches | 4.68 kg |
| Mockins XL Soft-Shell Rooftop | 35 cubic feet | Abrasion-resistant vinyl | 60 x 42 x 24 inches | — |
| FIVKLEMNZ Waterproof Rooftop C | 15 cubic feet | 840D PVC | 46 x 34 x 17 inches | 6.6 pounds |
| Asinking Waterproof Rooftop Ca | 21 cubic feet | 900D PVC | — | — |
| FIVKLEMNZ 30-Cubic-Foot Waterp | 30 cubic feet | 840D PVC; product details also list Oxford cloth | 60 x 43 x 20 inches in description; 60 x 60 x 20 inches in item dimensions | 5.44 kg |
| Asinking 21-Cubic-Foot Waterpr | 21 cubic feet | 840D PVC | 52 x 40 x 18 in | 4.24 kg |
| MIDABAO 20-Cubic-Foot Waterpro | 20 cubic feet | PVC and nylon | 51.1 x 39 x 17 in | 3.94 kg |
| AlltoAuto Waterproof Rooftop C | 21 cubic feet | 840D PVC tarpaulin | 52 x 40 x 18 in | 5.56 kg |
| MeeFar XBEEK 20-Cubic-Foot Wat | 20 cubic feet | 700D PVC tarpaulin | 51 x 40 x 17 in | 3.9 kg |
| Asinking 15-Cubic-Foot Waterpr | 15 cubic feet | 840D PVC | 44 x 34 x 17 in | 3.99 kg |
| MeeFar Waterproof Rooftop Carg | 21 cubic feet | PVC tarpaulin | 47 × 35 × 22 in | 4.88 kg |
| Asinking 21-Cubic-Foot Waterpr | 21 cubic feet | 900D PVC tarpaulin | 52 × 40 × 18 in | 4.71 kg |
| Car Roof Rooftop Cargo Carrier | 21 cubic feet | 840D weatherproof PVC fabric | — | — |
| TANX Waterproof Roof Cargo Bag | 21 cubic feet | 500D PVC tarpaulin | 52 × 40 × 17 in | 4.25 kg |
| Asinking Waterproof Rooftop Ca | 20 cubic feet | 900D double-coated PVC laminated tarpaulin | 40 × 52 in | — |
More Details on Our Top Picks
FIVKLEMNZ 21-Cubic-Foot Waterproof Soft Rooftop Cargo Carrier
The 21-cubic-foot capacity gives this FIVKLEMNZ bag a useful middle ground: more room than the brand’s 15-cubic-foot model, without the larger footprint of its 30-cubic-foot carrier or Mockins’ 35-cubic-foot bag. Its welded seams and waterproof cover are aimed at protecting luggage from wet-weather exposure, while the included mat, straps, door hooks, and lock give rack-free setups several installation pieces in one package. It is a flexible pick for drivers who want extra room but do not need maximum volume. I would weigh two specification inconsistencies before choosing it: the listed height varies between 17 and 18 inches, and the material is described as both 840D PVC and Oxford cloth. The soft shell also offers less impact protection than a hard box.
Pros:- 21 cubic feet offers more room than the FIVKLEMNZ 15-cubic-foot model.
- Waterproof cover and welded seams are designed to help protect luggage in rain and snow.
- Includes an anti-slip mat, reinforced straps, six door hooks, a lock, and a storage bag.
- Fits vehicles with or without roof racks.
Cons:- The listed height differs between 17 and 18 inches.
- Product details list both 840D PVC and Oxford cloth.
- Soft construction provides less impact protection than a hard cargo box.
Best for: Road-tripping couples or small families who want mid-to-large soft-bag capacity and may not have roof racks.
Not ideal for: Buyers who need verified material and dimensions before purchase, or who want the structure and impact protection of a hard cargo box.
- Capacity:21 cubic feet
- Dimensions:52 x 40 x 18 inches; another listed height is 17 inches
- Material:840D PVC; product details also list Oxford cloth
- Water resistance:Waterproof
- Vehicle fit:Universal; with or without roof racks
- Included accessories:Anti-slip mat, reinforced straps, six door hooks, luggage lock, storage bag
- Weight:4.68 kg
- Warranty:12 months
Our verdict“Choose this FIVKLEMNZ model for flexible, rack-free-compatible storage in the middle of the lineup, provided its inconsistent material and height details are acceptable.”
Mockins XL Soft-Shell Rooftop Cargo Carrier Bag, 35 Cu. Ft., Black, 60 x 42 x 24 in.
If the main goal is moving a lot of gear above the car, the 35-cubic-foot capacity sets this Mockins apart from the FIVKLEMNZ 30-cubic-foot and 21-cubic-foot bags. Its 60 x 42 x 24-inch size and stated 250-pound maximum load suit bulky trip packing, while welded seams, waterproof zippers, and protective flaps add several layers of weather protection. The installation kit is more involved than the simpler accessory sets on the smaller FIVKLEMNZ options: it includes multiple strap types and both trunk and door hooks. That flexibility can help with different vehicle setups, but it also means more securing steps. Like the other soft carriers here, it does not provide a hard box’s impact protection, and its large profile calls for careful fit and load planning.
Pros:- 35 cubic feet is the largest stated capacity among these five products.
- Waterproof zippers, protective flaps, welded seams, and reinforced stitching support weather protection.
- Fits vehicles with or without roof racks, rails, or crossbars.
- Includes several strap types, trunk and door hooks, a roof mat, lock, and storage bag.
Cons:- The large soft bag requires careful loading and securement.
- Multiple straps and hooks make installation more involved than a simpler setup.
- Soft-shell construction offers less impact protection than a hard cargo box.
Best for: Families or campers carrying bulky luggage who need the largest listed capacity and have time to secure a multi-strap setup.
Not ideal for: Drivers with limited roof space, small loads, or a preference for a rigid carrier that shields cargo from impacts.
- Capacity:35 cubic feet
- Dimensions:60 x 42 x 24 inches
- Maximum load:250 lbs
- Material:Abrasion-resistant vinyl
- Mounting fit:With or without roof racks, rails, or crossbars
- Included accessories:Three ratchet straps, two long buckle straps, four short buckle straps, two trunk hooks, six door hooks, bag lock, roof mat, storage bag
- Color:Black
- Warranty:10 years
Our verdict“Pick the Mockins when maximum soft-bag volume matters more than a quick, simple installation or hard-shell protection.”
FIVKLEMNZ Waterproof Rooftop Cargo Carrier Bag, 15 cu ft
For drivers who want to move a modest amount of luggage off the cabin without dedicating the roof to a large bag, this 15-cubic-foot FIVKLEMNZ is the compact choice here. Its 46 x 34 x 17-inch dimensions are smaller than the brand’s 21-cubic-foot carrier, so it makes more sense for a couple’s weekend gear or overflow bags than a family’s full vacation load. The 840D PVC, welded seams, and waterproof cover address wet-weather exposure, and the included eight straps, six door hooks, and anti-slip mat provide a fairly complete installation kit. The tradeoff is capacity: Mockins’ 35-cubic-foot model carries far more, and even the other FIVKLEMNZ bags offer more room. This one still needs careful strap-and-hook installation and lacks a rigid shell’s impact protection.
Pros:- Smaller dimensions than the FIVKLEMNZ 21- and 30-cubic-foot options.
- 840D PVC, welded seams, and a waterproof cover are designed to protect luggage from rain and snow.
- Fits vehicles with or without roof racks.
- Includes eight reinforced straps, six door hooks, an anti-slip mat, a lock, and a storage bag.
Cons:- 15 cubic feet may not hold enough for family trips or bulky equipment.
- Requires securing with multiple straps and door hooks.
- Soft construction offers less impact protection than a hard carrier.
Best for: Solo travelers or couples who need weather-resistant roof storage for a limited load and want to keep the carrier’s footprint smaller.
Not ideal for: Families, campers, or anyone packing bulky gear who would quickly outgrow 15 cubic feet.
- Capacity:15 cubic feet
- Dimensions:46 x 34 x 17 inches
- Weight:6.6 pounds
- Material:840D PVC
- Water resistance:Waterproof
- Vehicle fit:Universal; with or without roof racks
- Included accessories:Anti-slip mat, eight reinforced straps, six door hooks, luggage lock, storage bag
- Color:Black
Our verdict“Choose this compact FIVKLEMNZ bag for smaller loads and skip it if your trip calls for the greater capacity of the 21- or 35-cubic-foot options.”
Asinking Waterproof Rooftop Cargo Carrier Bag, 21 Cubic Feet
This Asinking bag matches the 21-cubic-foot FIVKLEMNZ carrier for stated capacity, but distinguishes itself with 900D PVC, a non-slip mat, and padded door hooks intended to help protect the vehicle where the carrier and hooks make contact. Its three-year warranty also gives it a longer stated coverage period than FIVKLEMNZ’s 12-month term. The fit caveat matters: the recommended roof needs to be longer than 58 inches and wider than 42 inches, so the bag’s stated 52 x 40 x 18-inch full dimensions do not tell the whole story about vehicle suitability. Compared with the 15-cubic-foot FIVKLEMNZ, this offers more trip capacity, but it remains a soft carrier and will not match a hard box for structure or impact protection.
Pros:- 21 cubic feet provides more room than the compact FIVKLEMNZ 15-cubic-foot bag.
- 900D PVC and reinforced seams are intended for abrasion resistance and weather protection.
- Non-slip mat and padded door hooks help protect vehicle contact points.
- Three-year warranty is longer than the 12-month term listed for the FIVKLEMNZ 21-cubic-foot option.
Cons:- Recommended fit requires a roof longer than 58 inches and wider than 42 inches.
- Soft-shell design offers less structure and impact protection than a hard carrier.
- The fit guidance may rule it out for vehicles with limited roof area.
Best for: Drivers with a roof that meets the stated fit guidance who want 21 cubic feet and accessories aimed at reducing contact with the vehicle.
Not ideal for: Owners of shorter or narrower roofs, or buyers who need the impact resistance and rigid shape of a hard cargo box.
- Capacity:21 cubic feet
- Material:900D PVC
- Dimensions when full:52 x 40 x 18 inches
- Vehicle fit:Vehicles with or without roof racks; recommended roof longer than 58 inches and wider than 42 inches
- Included accessories:Non-slip mat, combination lock, six door hooks, storage bag, user manual
- Warranty:3 years
- Mounting type:Roof mount
Our verdict“Choose the Asinking for its vehicle-protection accessories and longer warranty only if your roof meets its specific fit requirements.”
FIVKLEMNZ 30-Cubic-Foot Waterproof Soft Rooftop Cargo Carrier
The 30-cubic-foot capacity makes this FIVKLEMNZ a step up for travelers whose bags will not fit the brand’s 21-cubic-foot model, while remaining smaller than Mockins’ 35-cubic-foot carrier. It is designed for vehicles with or without roof racks and includes straps, six door hooks, an anti-slip mat, a lock, and a storage bag, giving rack-free buyers useful mounting pieces in the package. Welded seams and a double-layer cover are intended to help keep luggage dry. However, the product information lists two substantially different dimension sets—60 x 43 x 20 inches and 60 x 60 x 20 inches—and gives both 840D PVC and Oxford cloth as materials. Those inconsistencies make roof-fit planning less certain than with the Mockins, whose dimensions are stated consistently. Its soft shell also sacrifices rigid protection.
Pros:- 30 cubic feet offers substantially more capacity than the FIVKLEMNZ 21-cubic-foot model.
- Fits vehicles with or without roof racks.
- Welded seams and a double-layer cover are designed to help protect cargo from wet weather.
- Includes reinforced straps, six door hooks, an anti-slip mat, a luggage lock, and a storage bag.
Cons:- Two conflicting dimension sets are listed, making vehicle-fit planning less certain.
- Product details list both 840D PVC and Oxford cloth as materials.
- Soft-shell construction provides less impact protection than a hard cargo box.
Best for: Families or road-trippers needing a large soft carrier for a vehicle without roof racks, who can verify fit before loading.
Not ideal for: Buyers who need dependable dimensions for a tight roof fit or want a rigid carrier with impact protection.
- Capacity:30 cubic feet
- Dimensions:60 x 43 x 20 inches in description; 60 x 60 x 20 inches in item dimensions
- Weight:5.44 kg
- Material:840D PVC; product details also list Oxford cloth
- Water resistance:Waterproof
- Mounting type:Strap mount
- Vehicle fit:Universal; with or without roof rack
- Included components:Anti-slip mat, reinforced straps, six door hooks, luggage lock, storage bag
- Warranty:12 months
Our verdict“Choose this FIVKLEMNZ for a large rack-free-compatible load, but verify its dimensions and material details before relying on a precise fit.”
Asinking 21-Cubic-Foot Waterproof Rooftop Cargo Carrier Bag
The 21-cubic-foot capacity gives this Asinking bag room for bulky family luggage or camping gear, while its 840D PVC body, reinforced seams, and zipper cover are designed to help keep contents dry. It comes with a useful mounting kit, including an anti-slip mat, six padded door hooks, extra straps, and a luggage lock, and it can attach to vehicles with or without roof racks. Compared with the Asinking 15-Cubic-Foot model, this version offers more room but occupies a larger roof footprint and calls for careful strap placement. Like the other soft bags here, it cannot protect cargo as rigidly as a hard carrier. The multiple straps and hooks also take more setup than a fixed roof box, so I’d favor it for occasional trips where flexible capacity matters more than quick loading.
Pros:- 21 cubic feet of storage for bulky trip gear
- 840D PVC, reinforced seams, and a protective zipper cover
- Includes anti-slip mat, padded hooks, extra straps, and luggage lock
- Mounts on vehicles with or without roof racks
Cons:- Several straps and door hooks require careful setup
- Soft sides provide less impact protection than a hard-shell carrier
Best for: Families or campers who need 21 cubic feet of flexible storage and have a vehicle without roof rails.
Not ideal for: Drivers carrying fragile items or wanting a rigid, quickly accessible carrier; the soft shell and multi-strap mounting are less suited to those needs.
- Capacity:21 cubic feet
- Material:840D PVC
- Water resistance:Waterproof
- Dimensions:52 x 40 x 18 in
- Weight:4.24 kg
- Fit:Universal; with or without roof racks
- Mounting:Roof mount
- Included accessories:Anti-slip mat, storage bag, 6 padded door hooks, 2 extra straps, luggage lock
Our verdict“Choose this Asinking model if you need a large, rack-optional roof bag and can accept slower setup and soft-shell protection.”
MIDABAO 20-Cubic-Foot Waterproof Car Roof Cargo Carrier
The MIDABAO offers a practical middle ground: 20 cubic feet of storage in a rack-optional soft bag, with an anti-slip mat and a set of short and long straps for securing it. Its PVC-and-nylon construction keeps the design flexible for storage between trips, and its dimensions are slightly smaller than the 21-cubic-foot Asinking and AlltoAuto bags. That modest reduction can make packing easier on vehicles with less roof space, though it also means less room for bulky gear. Compared with the MeeFar XBEEK, MIDABAO lists a broader strap assortment but does not include a combination lock. Waterproofing is stated by the manufacturer, with no independent test details supplied, and its soft construction offers less rigid cargo protection than a hard carrier. I’d choose it for uncomplicated trip storage rather than delicate loads.
Pros:- 20 cubic feet of storage in a flexible soft-shell design
- Fits vehicles with or without roof racks
- Includes six short straps, two long straps, and an anti-slip mat
- Smaller footprint than the listed 21-cubic-foot options
Cons:- No lock is listed among the included accessories
- Waterproofing is manufacturer-described, with no independent test details provided
- Soft sides offer less rigid protection than a hard carrier
Best for: Drivers who want a roomy, rack-optional bag with multiple strap lengths for occasional road trips.
Not ideal for: Buyers seeking rigid protection for fragile cargo or a bag that includes a lock.
- Capacity:20 cubic feet
- Dimensions:51.1 x 39 x 17 in
- Weight:3.94 kg
- Material:PVC and nylon
- Water resistance:Waterproof
- Fit:Universal; with or without roof racks
- Closure:Zipper
- Included accessories:Anti-slip mat, six short straps, two long straps, storage bag
Our verdict“Pick the MIDABAO for flexible 20-cubic-foot storage and a useful strap kit, but skip it if a lock or rigid protection is a priority.”
AlltoAuto Waterproof Rooftop Cargo Bag, 21 Cu. Ft.
AlltoAuto’s strongest distinction is its stated combination of 840D PVC tarpaulin and heat-welded seams, alongside a full 21 cubic feet of capacity. That construction detail may appeal to travelers prioritizing weather protection, though the waterproof claim remains a product specification rather than independent test evidence. Its package is notably extensive: ten reinforced straps, six door hooks, an anti-slip mat, a combination lock, and a storage bag. Compared with the Asinking 21-Cubic-Foot bag, AlltoAuto lists more straps and a combination lock, but it is also heavier at 5.56 kg. Both share a large footprint and the soft-shell limits of this category: neither provides the rigid impact protection of a roof box. The 24-month warranty is a useful ownership detail, but setup still involves several straps and hooks.
Pros:- 21 cubic feet of storage for luggage and camping gear
- 840D PVC tarpaulin with heat-welded seams
- Includes ten reinforced straps, six door hooks, a mat, and combination lock
- Fits vehicles with or without roof racks and lists a 24-month warranty
Cons:- Heavier than the other listed 21-cubic-foot bag from Asinking
- Multiple straps and hooks add time and care to installation
- Soft construction does not offer hard-shell impact protection
Best for: Road-trippers who want a 21-cubic-foot bag with heat-welded seams, a substantial securing kit, and a stated 24-month warranty.
Not ideal for: Drivers who need a lightweight carrier or fast, simple installation; this model is heavier and uses multiple straps and hooks.
- Capacity:21 cubic feet
- Dimensions:52 x 40 x 18 in
- Material:840D PVC tarpaulin
- Water resistance:Waterproof
- Weight:5.56 kg
- Fit:Universal; with or without roof rack
- Included components:10 reinforced straps, 6 door hooks, anti-slip mat, combination lock, storage bag
- Warranty:24 months
Our verdict“Choose AlltoAuto if seam construction and a generous mounting kit matter more than keeping the carrier lightweight.”
MeeFar XBEEK 20-Cubic-Foot Waterproof Rooftop Cargo Bag
The XBEEK pairs 20 cubic feet of capacity with a foldable design and included storage bag, making it a sensible pick for drivers who want a roof carrier they can stow away after a trip. At 3.9 kg, it is slightly lighter than the MIDABAO 20-Cubic-Foot option, though MIDABAO lists more strap lengths. MeeFar includes an anti-slip mat, six security hooks, and a combination lock; its 700D PVC tarpaulin is a different material specification from the 840D PVC used in the larger Asinking and AlltoAuto models. The stated waterproof construction and flexible shell suit general luggage, but they do not provide the impact protection of a hard carrier. I’d also weigh its 60-day warranty against AlltoAuto’s 24-month coverage if warranty duration is a deciding factor.
Pros:- 20 cubic feet of storage while remaining foldable for off-season storage
- Fits cars and SUVs with or without roof racks
- Includes anti-slip mat, six security hooks, and combination lock
- Lighter than the listed 21-cubic-foot AlltoAuto bag
Cons:- 60-day manufacturer warranty is shorter than AlltoAuto’s listed 24-month warranty
- Soft shell provides less impact protection than a hard carrier
- 700D PVC tarpaulin is a different material specification from the 840D options
Best for: Drivers with limited garage or storage space who want a foldable 20-cubic-foot bag for occasional trips.
Not ideal for: Frequent travelers prioritizing a longer listed warranty or a rigid shell for delicate cargo.
- Model:XBEEK MF-1002
- Capacity:20 cubic feet
- Dimensions:51 x 40 x 17 in
- Weight:3.9 kg
- Material:700D PVC tarpaulin
- Fit:Universal; cars and SUVs with or without roof racks
- Included accessories:Anti-slip mat, combination lock, 6 security hooks, storage bag
- Warranty:60 days
Our verdict“Choose the MeeFar XBEEK if easy storage after trips matters more than a longer warranty or rigid cargo protection.”
Asinking 15-Cubic-Foot Waterproof Car Roof Cargo Carrier
This Asinking trades the 21-cubic-foot bags’ extra room for a more compact 15-cubic-foot capacity and a 44 x 34-inch footprint. That smaller size can be a better match for drivers who do not want a large bag spanning most of the roof, though it leaves less room for bulky family or camping gear. Like the Asinking 21-Cubic-Foot version, it uses 840D PVC with reinforced seams and includes an anti-slip mat, six door hooks, extra straps, and a luggage lock. Its waterproof zipper has protective flaps, while the included mounting pieces support use with or without roof racks. The two-year warranty is longer than the MeeFar XBEEK’s listed 60 days. Setup still involves securing straps, and the soft shell remains less protective than a hard carrier.
Pros:- Smaller 44 x 34 in footprint than the 20- and 21-cubic-foot options
- 840D PVC, reinforced seams, and a protective waterproof zipper flap
- Includes anti-slip mat, door hooks, extra straps, and luggage lock
- Fits vehicles with or without roof racks and has a two-year warranty
Cons:- Less capacity than the 20- and 21-cubic-foot bags in this group
- Multiple straps and door hooks require careful installation
- Soft-sided construction offers less rigid cargo protection than a hard carrier
Best for: Couples or small households who need extra luggage space but prefer a smaller roof bag than the 20- and 21-cubic-foot options.
Not ideal for: Large families or campers packing bulky equipment; 15 cubic feet may not replace the capacity of the larger bags.
- Capacity:15 cubic feet
- Material:840D PVC
- Water resistance:Waterproof
- Dimensions:44 x 34 x 17 in
- Weight:3.99 kg
- Fit:Universal; with or without roof racks
- Included components:Storage bag, anti-slip mat, 6 door hooks, 2 extra straps, luggage lock
- Warranty:2 years
Our verdict“Pick this Asinking when a smaller roof footprint and two-year warranty matter more than the extra capacity of its larger sibling.”
MeeFar Waterproof Rooftop Cargo Bag, 21 Cubic Feet
I’d choose the MeeFar 21-cubic-foot bag when rack flexibility matters as much as capacity: it can mount on vehicles with or without a roof rack, and the included door hooks support rack-free installation. Its PVC tarpaulin construction, waterproof zipper, and zipper flap are aimed at keeping luggage dry, while the anti-slip mat helps separate the bag from the roof. Compared with the Asinking 21-Cubic-Foot Waterproof Rooftop Cargo Carrier Bag, MeeFar specifies a zipper flap and lists a larger set of reinforced straps and hooks. The tradeoff is the same basic soft-shell compromise: it won’t shield contents from impacts like a hard box, and the multiple attachment points take care to position and tighten. I’d favor it for occasional trips where flexible fit and a full accessory kit matter more than rigid protection.
Pros:- Fits vehicles with or without a roof rack
- Waterproof PVC tarpaulin and zipper flap help shield luggage from rain
- Includes an anti-slip mat, 10 reinforced straps, six door hooks, and a combination lock
- 21-cubic-foot capacity accommodates substantial trip luggage
Cons:- Soft sides offer less impact protection than a hard-shell cargo box
- Multiple straps and hooks require careful installation and tightening
- The provided dimensions may make roof placement awkward on smaller vehicles
Best for: Drivers with or without roof racks who need 21 cubic feet of weather-protected luggage space and want the mounting accessories included.
Not ideal for: Travelers carrying fragile gear that needs rigid impact protection, or anyone who wants a carrier that avoids strap-and-hook setup.
- Capacity:21 cubic feet
- Dimensions:47 × 35 × 22 in
- Weight:4.88 kg
- Material:PVC tarpaulin
- Water resistance:Waterproof
- Fit:Vehicles with or without a roof rack
- Included accessories:Anti-slip mat, 10 reinforced straps, 6 door hooks, combination lock
- Color:Orange
Our verdict“Choose the MeeFar if you want a roomy, rack-optional soft carrier with a broad mounting kit and can accept strap-based setup.”
Asinking 21-Cubic-Foot Waterproof Rooftop Cargo Carrier Bag
The Asinking stands out for buyers who need full-size roof capacity on the road but want the bag to fold away between trips. Its 21-cubic-foot volume matches the MeeFar, while a storage bag and foldable design give it a clear advantage when closet or garage space is limited. The product data also specifies 900D PVC tarpaulin with reinforced welded seams, a useful construction detail for shoppers prioritizing weather protection. Like the TANX Waterproof Roof Cargo Bag, it includes an anti-slip mat, straps, hooks, and a combination lock; unlike TANX, it lists a two-year warranty. The key compromise is that this remains a soft carrier, so it cannot offer a hard box’s impact protection. Its 52-by-40-inch footprint also calls for careful positioning on the roof before tightening the many straps.
Pros:- Foldable design and included storage bag simplify storage between trips
- 900D PVC tarpaulin and reinforced welded seams are specified for waterproof construction
- Fits vehicles with or without roof racks or crossbars
- Includes anti-slip mat, 10 straps, six security hooks, combination lock, and a two-year warranty
Cons:- Soft-shell construction offers less impact protection than a hard carrier
- Large 52 × 40 in footprint may be difficult to position on smaller roofs
- Straps and hooks require careful setup to keep the bag secure
Best for: Road-trippers who need a full 21 cubic feet of cargo space but want a foldable carrier and storage bag for compact off-season storage.
Not ideal for: Drivers seeking rigid protection for fragile cargo or a compact rooftop footprint on a small car.
- Capacity:21 cubic feet
- Dimensions:52 × 40 × 18 in
- Weight:4.71 kg
- Material:900D PVC tarpaulin
- Water resistance:Waterproof
- Fit:Vehicles with or without roof racks or crossbars
- Included components:Anti-slip mat, 10 reinforced straps, 6 security hooks, combination luggage lock, storage bag
- Warranty:2 years
Our verdict“Pick the Asinking if you want 21 cubic feet on the road and a foldable, bagged option for storage afterward.”
Car Roof Rooftop Cargo Carrier Bag – Waterproof 21 cu ft Soft-Shell Large Roof Top Bag for SUVs & Trucks (Black/Gray)
This 21-cubic-foot carrier suits buyers who want weather coverage beyond rain: its 840D PVC fabric is described as waterproof, dust-resistant, and UV-resistant. That makes it a distinct pick beside the MeeFar Waterproof Rooftop Cargo Bag, whose supplied details emphasize waterproof fabric and a zipper flap rather than UV and dust resistance. The universal fit is another practical draw for owners of cars, SUVs, pickups, or trucks without factory roof racks. A non-slip mat and six reinforced door hooks help secure the load, and the included hand bag gives the loose carrier a place to go off the vehicle. The tradeoff is a smaller mounting kit than MeeFar’s 10 straps and six hooks: installation depends on careful hook placement, and the bag still cannot match a hard box for impact protection. Folded storage may also take up trunk room.
Pros:- 840D PVC fabric is specified as waterproof, dust-resistant, and UV-resistant
- 21-cubic-foot capacity suits luggage and camping gear
- Universal fit includes vehicles without factory roof racks
- Includes a non-slip mat, six reinforced door hooks, combination lock, and storage hand bag
Cons:- Soft-shell construction provides less impact protection than a hard cargo box
- Careful mat and hook positioning is needed during installation
- Folded bag may take up noticeable space in the trunk
Best for: SUV, pickup, and truck owners who want 21 cubic feet of soft rooftop storage with stated resistance to water, dust, and UV exposure.
Not ideal for: Drivers who need rigid impact protection, a small folded storage footprint, or a more extensive set of included mounting straps.
- Capacity:21 cubic feet
- Material:840D weatherproof PVC fabric
- Fit:Universal; vehicles with or without roof racks
- Vehicle types:Cars, SUVs, pickups, and trucks
- Color:Black/Gray
- Included accessories:Cargo bag, storage hand bag, non-slip mat, 6 reinforced door hooks, combination lock
- Stated resistance:Water, dust, and UV exposure
Our verdict“Choose this bag if stated UV and dust resistance matter alongside rack-free fit, and you can manage careful hook placement.”
TANX Waterproof Roof Cargo Bag, 21 Cubic Feet
The TANX is the most compelling choice here for shoppers who want a larger number of supplied tie-down straps: it includes 12 securing straps, compared with 10 on the MeeFar Waterproof Rooftop Cargo Bag and the 21-cubic-foot Asinking. Its heat-welded seams and waterproof, tear-resistant 500D PVC tarpaulin are intended to help protect luggage from rain and snow. Capacity and rack-free fit are on par with those alternatives, while the included storage bag helps keep it contained when it’s off the roof. The tradeoff is that its product data lists a one-year warranty, shorter than the two years specified for the Asinking 21-cubic-foot model. And, like every soft option in this group, it cannot protect cargo from impacts as a rigid box can. Buyers still need to attach and tension the straps and hooks carefully.
Pros:- Heat-welded seams and waterproof, tear-resistant material are specified for wet-weather protection
- Includes 12 securing straps and six door hooks
- Fits cars and SUVs with or without roof racks
- Storage bag, anti-slip mat, and combination lock are included
Cons:- One-year warranty is shorter than the two-year warranty listed for the Asinking 21-cubic-foot carrier
- Soft sides provide less impact protection than a hard-shell box
- Straps and hooks require careful installation and adjustment
Best for: Drivers who want a 21-cubic-foot waterproof bag and prefer having 12 securing straps for arranging the rooftop load.
Not ideal for: Buyers who prioritize a longer stated warranty or need rigid protection for fragile items.
- Capacity:21 cubic feet
- Dimensions:52 × 40 × 17 in
- Weight:4.25 kg
- Material:500D PVC tarpaulin
- Water resistance:Waterproof
- Fit:Cars and SUVs with or without roof racks
- Included components:Anti-slip mat, 12 securing straps, 6 door hooks, combination lock, storage bag
- Warranty:1 year
Our verdict“Pick the TANX if you value 12 included tie-down straps and welded-seam weather protection more than a longer warranty.”
Asinking Waterproof Rooftop Cargo Carrier Bag, 20 Cubic Feet
The 20-cubic-foot Asinking makes sense when you want most of the capacity of the 21-cubic-foot bags but don’t need every last cubic foot. Its 900D double-coated PVC laminated tarpaulin, heat-welded seams, and storm-flap zipper are specified to help keep out rain, dirt, and road spray. That gives it a more detailed closure and fabric description than the TANX Waterproof Roof Cargo Bag, which offers 21 cubic feet and more included straps. The Asinking also fits vehicles with or without roof racks and includes a non-slip mat, four anti-scratch door hooks, and a storage bag. The smaller hook count means there are fewer supplied attachment points than on MeeFar’s 10-strap, six-hook kit, so fit and securing method deserve attention. It remains a soft carrier, not a rigid shield for fragile cargo.
Pros:- 900D double-coated PVC tarpaulin with heat-welded seams
- Storm-flap zipper is designed to help limit rain, dirt, and road spray entry
- Fits vehicles with or without roof racks
- Includes a non-slip mat, four anti-scratch door hooks, combination lock, and storage bag
Cons:- One cubic foot less capacity than the 21-cubic-foot options in this group
- Includes four door hooks, fewer than the six hooks supplied with MeeFar and TANX
- Soft-shell design offers less impact protection than a hard cargo carrier
Best for: Drivers who need substantial rooftop storage for a family trip but can work within 20 cubic feet and want a storm-flap zipper.
Not ideal for: Travelers who need the full 21-cubic-foot capacity or want more than four included door hooks for mounting flexibility.
- Capacity:20 cubic feet
- Dimensions:40 × 52 in
- Material:900D double-coated PVC laminated tarpaulin
- Fit:Vehicles with or without roof racks
- Closure:Storm-flap zipper
- Included components:Non-slip mat, 4 anti-scratch door hooks, combination lock, storage bag, user manual
- Warranty:2 years
Our verdict“Choose this Asinking if 20 cubic feet is enough and the storm-flap zipper matters more to you than maximum capacity or extra hooks.”
How We Picked
I compared the 15 listed soft-shell carriers through the details buyers can use to choose: stated capacity, listed dimensions where available, waterproof positioning, and how clearly each option suits a particular load. I gave extra weight to practical fit and usability because a large bag is not useful if it conflicts with the vehicle’s roof layout or cannot be secured as directed. I also looked at the spread of sizes, from compact 15-cubic-foot choices to the 35-cubic-foot Mockins, to distinguish carriers for everyday overflow from those aimed at larger trips.
The ranking gives the strongest placement to options with a clear role and a useful balance of capacity and likely versatility, rather than treating similar 20- and 21-cubic-foot bags as interchangeable winners. The 21-cubic-foot FIVKLEMNZ leads as a balanced starting point; Mockins ranks for maximum volume, while smaller bags stand out for restrained loads. Where product details do not establish a meaningful difference, I avoid claiming one bag has superior durability or fit and recommend checking the exact listing and vehicle requirements before purchase.
Factors to Consider When Choosing Car Roof Cargo Carriers
Capacity is only one part of choosing a roof bag. I would first match the carrier to the vehicle’s roof and the kind of trip, then check how it will be packed, secured, and protected from weather.
Match the Bag to Your Roof and Mounting Setup
Before choosing a capacity, check whether your vehicle has crossbars, side rails, or a bare roof, then confirm the bag’s instructions support that setup. A soft carrier may use straps routed through or around the vehicle, but mounting methods differ, and a door-frame attachment may not suit every car. Measure the usable roof area rather than relying on the vehicle’s overall width, especially around a sunroof, antenna, or rear hatch. Check the vehicle manual for roof-load limits and count the carrier’s weight as part of that total. A bag that fits on an SUV may overhang a smaller sedan, even if both are described as suitable for cars. I would skip any option whose mounting instructions do not clearly match the roof arrangement.
Choose Capacity by the Shape of Your Load
Cubic feet gives a rough sense of volume, not a guarantee that every item will fit. Soft bags work best with flexible luggage and textiles; rigid coolers, hard cases, or sharply edged gear can waste space or press against the shell. The 15-cubic-foot options in this group suit lighter overflow, while a 21-cubic-foot bag gives more room for mixed family luggage. A 35-cubic-foot carrier has a different purpose: it can take bulky loads, but only if the roof footprint and vehicle limits allow it. Make a list of the largest items and compare their dimensions with the carrier’s listed dimensions before buying. Avoid filling a bag simply because space remains; a low, stable load is easier to secure.
Read Waterproof Claims as One Part of Weather Protection
A waterproof label cannot tell you how a carrier handles a long drive through heavy rain, wind-driven spray, or repeated use. Closures and seams are potential weak points, so look for clear care and packing instructions rather than relying on the headline claim alone. Put clothing, electronics, and other moisture-sensitive items in separate waterproof liners inside the bag. Keep the closure area clean and fully shut, and avoid packing objects that can push against it. If you expect frequent wet-weather travel, consider how easily the bag can be dried before storage. This small preparation costs little space and reduces the consequences of water getting in.
Balance Loading Convenience Against Security
A carrier that is awkward to load can become a problem before the trip begins, especially when the roof is tall or the bag is large. Think about whether you can reach the roof safely and whether another person can help position and tighten the bag. Distribute weight evenly, place heavier items low, and keep the load from shifting as the vehicle moves. Follow the supplied strap routing and recheck tension after the first short drive, since settling can loosen a newly packed bag. Do not assume more straps or a larger bag automatically mean a safer setup; the carrier must be attached as its manufacturer directs. If solo loading is a regular need, a smaller bag may be the more usable choice.
Account for Noise, Clearance, and Ongoing Care
Soft-shell carriers sit exposed to airflow, so placement and packing can affect noise and drag. A loose strap can flap, and an uneven load can catch wind; tidy excess webbing and keep the packed shape as low and smooth as practical. Check total vehicle height before entering garages, covered parking, or drive-throughs, since roof cargo changes clearance. After travel, dry the carrier fully before folding it away to limit trapped moisture and odor. Inspect straps, buckles, seams, and the shell for wear before each trip, especially if the bag has been stored for a long time. Buyers who want a carrier for frequent, year-round use should weigh this maintenance against the convenience of a soft bag.
Know When a Larger or More Specialized Carrier Is Worth It
Paying for more capacity makes sense when your usual load genuinely needs it, not just because the biggest number looks reassuring. The Mockins 35-cubic-foot option stands apart in this lineup for large-volume needs, while the many 20- and 21-cubic-foot bags are more moderate choices. A smaller carrier can be easier to store and handle when trips usually involve a few duffels rather than a full family load. If you carry the same bulky equipment often, compare a soft bag’s flexibility with a dedicated rigid carrier’s shape and storage demands. For occasional use, a soft-shell option may be easier to put away between trips. Let trip frequency, load shape, and available storage space drive the decision.
Frequently Asked Questions
Can I use a roof cargo bag without crossbars?
Some soft bags are designed for vehicles without crossbars, while others rely on roof rails or crossbars, so the answer depends on the specific model and vehicle. Read the mounting instructions for the exact carrier rather than assuming all soft bags attach the same way. Check whether the straps can pass through the vehicle’s door openings and whether the instructions address your roof type. Also review the vehicle manual for roof-load limits and any restrictions on straps near airbags or trim. If the fit or routing is unclear, choose a carrier with explicit guidance for your setup.
Is a 21-cubic-foot carrier too large for a sedan?
Not automatically, but the volume figure alone cannot confirm fit. Compare the bag’s dimensions with the flat, usable area of your roof and check that it will not obstruct the windshield view, antenna, hatch, or doors. A long or wide bag can overhang even when its stated capacity seems reasonable. Check the vehicle’s roof-load limit as well, including the carrier and its contents. If the manufacturer does not list dimensions or a compatible mounting method, a smaller option may be easier to fit confidently.
Will a soft rooftop cargo bag keep everything dry in heavy rain?
A waterproof description is useful, but it does not promise that every item will stay dry under every condition. Water can enter through closures, seams, or a poorly secured opening, especially during prolonged rain or at highway speed. Place sensitive belongings in separate waterproof bags inside the carrier and follow the closure instructions closely. Avoid overfilling, since pressure on the opening can interfere with a proper seal. If the cargo cannot tolerate any moisture, use a more protective inner container or consider a different carrier style.
How much can I safely load into a roof carrier?
The safe limit is determined by the vehicle’s roof-load rating, the carrier’s own limit, and the mounting setup—not by the bag’s volume. Check the vehicle manual and product instructions, and use the lower applicable limit. Include the carrier’s weight and distribute cargo evenly rather than concentrating heavy objects at one end. Keep the load stable, close the bag without forcing it, and secure every strap as directed. If the product listing does not state a clear load limit, ask the manufacturer before using it for heavy gear.
Should I choose the 35-cubic-foot bag or a 20- to 21-cubic-foot model?
The larger Mockins makes sense when you regularly carry bulky luggage and have enough roof area and load capacity for it. A 20- or 21-cubic-foot model is a more restrained choice for typical trip overflow and may be easier to position, load, and store. Think about the dimensions of your largest items, not just the total amount of clothing or luggage. An oversized bag can be awkward when partly filled, and a poorly packed load may shift or catch more airflow. Choose the smallest capacity that accommodates your real trip load with room to close the carrier properly.
Conclusion
For most buyers, I would start with the FIVKLEMNZ 21-Cubic-Foot Waterproof Soft Rooftop Cargo Carrier as the best overall balance in this group. The best value-oriented choice is a well-matched 20- or 21-cubic-foot option such as the MIDABAO 20-Cubic-Foot, provided its mounting details fit your vehicle; capacity alone does not make similar bags interchangeable. For a premium-sized load, the Mockins 35-cubic-foot bag is the standout for buyers who need the most room and can accommodate its footprint. Beginners who want a more manageable first carrier should look at the FIVKLEMNZ 15-cubic-foot bag and confirm its attachment instructions before ordering. For compact loads, compare the 15-cubic-foot FIVKLEMNZ and Asinking models; for larger family trips, choose a 21-cubic-foot option after checking roof dimensions and load limits. My final rule is simple: match the bag to your roof and actual cargo before choosing by capacity.
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