This saddlebag is a zip-off bag with a heavy duty Velcro cover and lock. It has a universal fitting, a hard sheet Inside the box with 4 pockets, and heavy duty quick release tabs. The set is 100% waterproof, has tie-down ribbons on each side, and is UV protected so will not turn white in extreme heat. There is a heat protection layer on the bottom of the bag. The bag holds its shape. Artificial leather. 12" x 6" x 9.5"