Kingfun Rooftop Cargo Carrier 21 cu ft — Waterproof Foldable Roof Bag with Anti-Slip Mat

Kingfun Rooftop Cargo Carrier is a 21 cubic-foot waterproof, tear-resistant car roof bag that expands vehicle storage while keeping gear secure with anti-slip matting, reinforced straps, and locks.

When you need more room for suitcases, camping gear, or bulky items but don’t want a permanent roof box, this soft-shell rooftop bag provides a weatherproof, foldable solution. Built from thickened 700D PVC with an added grid middle layer, it resists wear and UV while remaining lightweight and easy to store. The kit includes anti-slip and lashing components and works on cars with or without a factory roof rack.

How much gear can this rooftop bag carry?

The Kingfun bag offers 21 cubic feet of storage, large enough for multiple suitcases or bulky outdoor items. Its dimensions—52" long, 40" wide, and 18" high—are optimized to sit on most vehicle roofs without overhangs that interfere with driving safety.

• Stores up to six standard suitcases or equivalent camping equipment
• 52" x 40" x 18" external dimensions for practical capacity
• Foldable design for compact storage when not in use

Is the carrier weatherproof and durable for long trips?

The exterior uses thickened 700D PVC with a grid middle layer to repel water, resist tears, and block UV exposure, making it suitable for road trips and varied climates. Seams and closure design are engineered to limit water entry, while the material stands up to abrasion from contact with roof rails or cargo.

• Waterproof fabric prevents rain intrusion and protects luggage
• Grid middle layer increases tear resistance and longevity
• UV-resistant coating to reduce sun degradation over time

How does it attach and stay secure during driving?

Installation is quick: place the included anti-slip mat, position the bag, then secure using the eight reinforced straps, six door hooks, and two lashing straps. A combination luggage lock and thoughtful strap routing minimize movement, protect paint, and cut down on wind noise.

• Anti-slip mat reduces shifting and friction on the roof
• Eight reinforced straps and six door hooks for tight anchoring
• Two lashing straps and combination lock add security and stability

Will this fit my car if I don’t have cross rails?

Yes—Kingfun designed the carrier for universal compatibility so it can be mounted on vehicles with or without factory crossbars. Door hooks and multiple strap points let you secure the bag directly to the vehicle’s door frames or to existing roof racks.

• Works on sedans, hatchbacks, SUVs, and many smaller vehicles
• Mounts using door hooks when no roof rack is present
• Compressible shape accommodates slightly different roof profiles

Who is this for? Travelers, outdoor enthusiasts, and families who need extra cargo room without a permanent roof box will find this Kingfun rooftop carrier useful. It’s ideal for weekend campers, road-trippers, and anyone looking to protect gear from rain and road wear while keeping the option to fold and store the carrier between trips. Professional after-sales support is available if you encounter fitment or setup questions.