【Large Storage Space】: OBSOO roof cargo carrier size is L49" x W44" x H19", 20 cubic feet of large space can accommodate all the luggage of 5-6 people, suitable for everything you need during the journey 【100% Waterproof】: With high-density 900D PVC fabric, our roof rack cargo carrier also features with double-sided water repellent coating, waterproof zipper, Wide 4-inch double-sided zipper flap, extended 4-inch Velcro. All seams are heat welded and well-stitched to keep your luggage 100% dry under extreme weather 【Upgraded safety design】:We use 8 adjustable reinforced straps to fix the car top carrier roof bag in place, and are also equipped with anti-skid pads and hooks, so that you will not slide on bumpy roads, and will not produce scratches, ultra-high-density resistance the torn 900D PVC has better durability and strength, and the logo uses reflective materials to improve driving safety 【Suitable For All Vehicles】：Whether your car is with roof rack or not, the 6 door hooks and 8 strong straps can always secure your roof top carrier bag 【OBSOO Promise】: You will receive 1x rooftop cargo bag, 1x storage bag, 1x anti-slip mat, 6x door hooks, 8x luggage straps. 2-Year Warranty and 24/7 online customer support, if you have any problem for this roof bag, just feel free to let us know