"Water resistant soft-side car top carrier vehicle storage bag with a 15 cubic foot capacity. Rugged, all weather, dry storage for vehicle roof racks, cargo carriers, and rear hatch or trunk spaces. A convenient vehicle storage bag measuring 38"" L by 38"" W by 18"" H Suitable for transporting fishing equipment, camping gear, beach items, luggage and more. For storing items on a 45 degree angle, the hypotenuse measures 42"" inside, from top corner to opposite bottom corner. RBG-01 soft-sided roof bag features an integrated storm flap system, designed to fold over a heavy-duty self-repairing zipper. Includes four adjustable tie-down straps for mounting to a vehicle roof rack or cargo carrier basket while cinching cargo tight in the process. Made with thick, durable PVC coated nylon."