THULE 869 Interstate Cargo Bag Imported 12" high 13" wide IP test verified water resistance sets the standard for car top bag weather protection Twin compression straps keep cargo securely positioned while in transit, minimizing friction and noise Padded base protects vehicle finish from abrasion. Fits Thule AeroBlade and SquareBar. Volume-16 cubic feet PVC-free construction is durable yet kind to the environment Heavy-duty, double-stitched webbing straps (included) attach bag to roof rack crossbars or raised rails