Sailnovo Roof Bag Box Soft-Shell Carrier 21 Cubic Feet with Anti-slip Mat + 6 Door Hooks, Waterproof PVC Car Roof Bag Roof Boxes Fit Car with/without Luggage Rack, Black

【Spacious and Convenient】With a generous storage capacity of 21 cubic feet/594L, soft-shell roof bag can easily accommodate all your gear, including 4-6 suitcases, 4 tents, 4 sleeping bags, and more. Perfect for family trips and camping, it adds extra storage space for all your essentials. 【Anti-slip Mat】We offer an anti-slip mat to keep your roof box securely in place during every drive, preventing it from shifting and making noise. 【Universal Design】Our car roof bag waterproof is designed to fit most vehicles and can be easily installed in minutes using raised side rails, roof racks, or baskets. For cars without roof racks, we provide 6 door hooks. 【SECURE & STABLE】With 6 door hooks and 8 adjustable straps, our car roof storage is tightly secured for the entire trip, preventing it from rain seeping into the car. Anti-slip mat can effectively prevent scratches on the roof and excess noise while driving. 【DURABLE & WEATHERPROOF】To withstand any weather conditions, this car top carrier has been improved: by adding a waterproof zipper, increasing the length of the velcro zipper flaps, and double-reinforcing fabric seams. These will keep your belongings dry and safe even in heavy rain or snow.