The Advantage SofTop Weather Resistant Roof Top Cargo Bag allows you to utilize your vehicle's roof rack to get full use out of your vehicles travel space. You will have 15 cubic feet of storage space to haul Additional stuff anywhere you go. The SofTop easily attaches to a standard roof rack with included tie down straps. Made from durable H2O and weather resistant 600 Denier coated polyester. The Zipper runs on three sides of the bag allowing easy access to your cargo from any side of the vehicle. Try using the SofTop for traveling, camping, carrying sports equipment or when you just necessity some Additional leg room in the vehicle. Easy to install and remove, it folds flat for easy storage when not in use.