The Rightline Gear Sport Car Top Carrier is one of the largest car top bags on the market and aerodynamically designed to help save money at the gas pump. The carrier is 100% waterproof with Dual Seam Technology, unzips 3/4 of the way around for easy loading, and attaches to vehicles WITH or WITHOUT a roof rack. ZipRight zipper system also features a urethane coated zipper to ensure water stays out and your gear is dry. Sewn for strength and welded for extra waterproof safety, this vehicle roof storage option is constructed of PVC mesh and Hydrotuff materials that is UV-resistant. Connect the carrier's straps to a roof rack, run them through the vehicle, or add the Rightline Gear Car Clips (sold separately) to attach them to the vehicle's door frame. Includes: Carrier, four nylon straps, stuff sack, and a sewn-in setup guide. Capacity: 9 cu. ft.