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. The bag holds its shape. Artificial leather. With or without Stud Trim. 18.25" x 7.5" x 10.5"