The Aerodynamic roof rack storage bag is available in a waterproof or a water resistant design. The aerodynamic cargo carrier storage bags are 48"L x 26"W x 16"H. Bully roof rack cargo storage bags are designed for the safe and dry transport of your gear on top of your vehicle's roof rack. This aerodynamic cargo bag provides 12 cubic feet of cargo space to haul your gear on top of your vehicle's roof. The Bully Truck Accessories Roof Rack Cargo Storage Bags are so durable, that they backed with a 5 year Limited Manufacturer's Warranty.