FIVKLEMNZ 21 cu ft Rooftop Cargo Carrier Bag — Waterproof 840D PVC, Heavy-Duty with 10 Straps & Anti-Slip Mat

The FIVKLEMNZ Rooftop Cargo Carrier is a 21 cubic-foot, fully waterproof, heavy-duty roof bag that adds secure, weatherproof storage to virtually any car, SUV, van, or truck.

Whether you’re heading out for a weekend camping trip, a family vacation, or need extra space for moving gear, this rooftop bag expands vehicle capacity without permanent racks. Built from upgraded 840D PVC with high-frequency welded seams and a double-layer cover, it’s designed to resist rain, snow, and road spray while protecting luggage on long drives.

How much extra storage does this roof bag provide?

This model offers 21 cubic feet of cargo room, sized to hold several suitcases, tents, or bulky equipment. The rectangular form and generous opening make packing and organizing straightforward for trips of any length.

• Capacity: 21 cubic feet (fits 4–6 medium suitcases)
• External dimensions: 52 x 40 x 18 inches
• Large zippered opening for easy loading
• Compressible when empty for compact storage

Is the roof bag really waterproof and durable for highway use?

Yes — the bag uses heavy-duty 840D PVC fabric, high-frequency welded seams, and a double-layer waterproof cover to minimize water intrusion. Built for road and weather exposure, it resists tears and abrasion while guarding contents from wet conditions.

• 840D PVC outer with double-layer waterproof cover
• High-frequency welded seams for seam integrity
• Reinforced body to resist punctures and rips
• Durable zipper flap and storm protection

How does the carrier stay secure on different vehicles?

The FIVKLEMNZ carrier includes a reinforced mounting system with ten straps, six door hooks, and an anti-slip mat to keep it stable at highway speeds. The combination works on cars with or without roof racks and reduces movement and scratching during transit.

• 10 reinforced straps for distributed load security
• 6 door hooks for frame attachment on rackless roofs
• Anti-slip mat protects paint and prevents shifting
• Works with side rails, crossbars, or bare roofs

What extras are included to make travel easier?

The rooftop carrier ships complete with a compact travel kit so you can install and lock it quickly. Small accessories help secure gear, deter theft, and stow the bag neatly when it’s not in use.

• Anti-slip mat included to protect vehicle finish
• Luggage lock for basic theft deterrence
• Reinforced straps and door hooks for installation
• Storage bag for compact packing and transport

Who is this for? Drivers who need reliable, temporary roof storage—campers, families on road trips, outdoor enthusiasts, and anyone transporting bulky items—will find the FIVKLEMNZ rooftop bag a practical, non-permanent solution. It’s aimed at people who want a weatherproof, heavy-duty option that installs quickly on cars with or without existing roof racks and stores compactly when not in use.