Saddlemen S3500 Tactical Deluxe Sissy Bar Bag. 3500 cubic inches of storage. Measures 22x16x11. Multiple zippered pockets. Main compartment opens from either side. Internal shelf/divider is velcro secured making it easy to change compartment sizes or can be removed entirely. Has a rain cover in the top pouch. Online descriptions say it has detachable backpack straps. I don't have those. Nice shape, shows just a small amount of use. Best price I can find online FOR A NEW ONE is around $250.