Previous page How to Install on Cross Bars Secure the carrier with tie-down straps looped around the cross bars. Use cam buckles to tighten. How to Install on Side Rails Wrap the straps around the side rails. Buckle and tighten to keep the cargo stable. How to Install with a Roof Basket Place the carrier in the basket. Fasten straps through the basket frame and tighten securely. How to Install Without Bars or Rails Attach hooks under the door seals. Loop, buckle, and tighten straps for a secure fit. Next page 1 Cross Bars 2 Side Rails 3 Roof Basket 4 Without Bars or Rails Can this cargo carrier fit on a car without roof racks? Absolutely! It comes with door hooks and straps that secure it to vehicles without roof racks. Installation is simple and secure. How much storage space does this carrier offer? The cargo carrier provides a spacious 21 cubic feet of storage, equivalent to 10 carry-on bags, maximizing your vehicle’s travel capacity. Is the material really waterproof? Can it withstand heavy rain? Yes, it's made from military-grade PVC with waterproof zippers and a protective flap, ensuring your belongings stay dry even in heavy rain. How do I prevent the cargo bag from damaging my car’s roof? A protective roof mat is included with your purchase, which helps prevent scratches and keeps the carrier firmly in place. How noisy is the cargo carrier when driving at high speeds? The aerodynamic design minimizes wind resistance and noise, ensuring a quieter and more fuel-efficient drive.