FIVKLEMNZ 21 Cubic Car Rooftop Cargo Carrier — Waterproof Bag with Anti-Slip Mat
About this item
- 【100% Waterproof & Heavy-Duty Material】 Made with upgraded durable 840D PVC material and high-frequency welded seams, features a double-layered waterproof cover, this rooftop cargo carrier keeps your luggage dry even in heavy rain, snow, or long-distance travel. Built for road trips, camping, and family vacations.
- 【21 Cubic Feet Extra Storage Space】 Expand your vehicle’s storage instantly. The large 21 cubic feet roof top cargo bag (52 x 40 x 18 inches) easily fits 4–6 suitcases, tents, sleeping bags, and travel gear, free up inside vehicle space for more comfortable on the way.
- 【More Secure with 10 Reinforced Straps & 6 Door Hooks】 Upgraded safety system includes 10 reinforced straps, 6 door hooks and anti-slip mat for stronger stability at highway speeds and prevent scratch from your car simultaneously. Keeps the roof bag firmly in place even on long drives or windy conditions.
- 【Fits All Vehicles With or Without Roof Rack】 Designed to work with cars, SUVs, vans, and trucks — no matter if you have side rails, crossbars, or no rack at all. Quick installation in minutes.
- 【Complete Travel Kit Included】 Comes with anti-slip mat, luggage lock, reinforced straps, door hooks and storage bag for easy setup, safe travel, and compact storage when not in use.
- 【Size Selection 】 We recommend a 15 cubic roof bag for small cars, a 21 cubic meter roof bag for SUVs, and a 30 cubic meter roof bag for SUVs and larger vehicles.
Trust score below threshold: too few reviews or negligible discount. Better to look elsewhere.
Price history · 90 days
The green area marks the "deal zone" — below the historical average.
What we like
- +Fully waterproof with welded seams and double cover
- +Fits cars, SUVs, vans, and trucks even without roof rails
- +Includes anti-slip mat, 10 straps, 6 hooks, and lock
- +Lighter and easier to store than hard rooftop boxes
- +Strong customer rating of 4.4/5 from thousands of reviews
To consider
- −Soft bag offers less impact protection than a hard shell
- −May reduce fuel economy at highway speeds
- −Requires careful strapping to avoid flapping or shifting
- −Not ideal for tall or bulky items that exceed bag dimensions
Buy the FIVKLEMNZ 21 Cubic Roof Bag if you need affordable, temporary extra storage for road trips and don't want to invest in a hard-shell box. The 27% discount to $79.98 makes it a great value for a waterproof, well-reviewed cargo carrier. Skip it if you carry fragile gear regularly, drive long distances at high speeds, or require a lockable hard case. For casual campers and family vacationers, it's a smart buy.
Editorial review
The FIVKLEMNZ 21 Cubic Car Rooftop Cargo Carrier turns your car into a travel-ready hauler in minutes. Whether you're heading out on a cross-country road trip or just need extra room for camping gear, this roof bag adds 21 cubic feet of storage without the fuss of a hard-shell box. At $79.98 right now — down from $109.99 — it's a practical way to free up precious interior space.
Made from thick 840D PVC material with high-frequency welded seams and a double waterproof cover, this bag keeps your belongings dry through rain and snow. No more worrying about damp sleeping bags or soaked suitcases after a long drive. The size (52 x 40 x 18 inches) easily holds up to six suitcases, tents, blankets, or bulky sports equipment.
Installation is straightforward, even if your car doesn't have a roof rack. The included system uses 10 reinforced straps, 6 door hooks, and an anti-slip mat to hold everything tight. That setup keeps the bag stable at highway speeds and protects your car's paint from scratches. A luggage lock adds basic security when you stop for breaks.
This is a soft-sided carrier, so it's lighter and easier to store than a hard shell. When not in use, it folds into its own storage bag and takes up minimal space in the trunk. The trade-off is that it won't offer the same rigid protection or aerodynamics as a hard case, but for occasional or seasonal travel, it's a solid value.
Based on over 8,600 reviews with a 4.4 out of 5 rating, buyers consistently praise its waterproof performance and ease of use. The current sale price reflects a genuine 27% savings, making it one of the more affordable cargo solutions on Amazon right now.
Price trend
Normally priced at $109.99, this FIVKLEMNZ roof bag is now $79.98 — a 27% savings of $30.01. That's rare for a product with 8,600+ reviews and a 4.4-star rating. If you've been considering a soft cargo carrier, this sale price makes it worth grabbing now. Prices can change quickly, so this deal won't last forever.
Frequently Asked Questions
Will this roof bag work on my car without a roof rack?
Yes. The included door hooks and straps attach to the door frames of most vehicles, so you don't need side rails or crossbars. It also works with existing racks.
Is the bag truly waterproof in heavy rain?
The 840D PVC material and heat-sealed seams, combined with a double waterproof cover, keep contents dry in moderate to heavy rain. Avoid submerging it.
How long does installation take?
Most users report setup in under 10 minutes the first time. The anti-slip mat goes on the roof, then you position the bag, thread straps through doors, and tighten.
Can I drive at highway speeds with this bag?
Yes, but keep speeds under 70 mph to reduce wind resistance. The 10 reinforced straps and hooks are designed for stability, but check tightness during long trips.
Does the bag scratch my car's roof?
The included anti-slip mat cushions between the bag and the paint. For extra protection, you can also place a soft blanket underneath. No direct contact with the roof.
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