Classically the top tube bag or ‘bento box’ has been used by triathletes to keep food easily accessible. Now it has become a popular accessory for commuting and touring for those wanting to keep smaller items like cell phone keys or even a wallet within arm’s reach. Durable 840 denier nylon fabric construction with padded and lined interior. Clear top for easy viewing of items within while keeping them protected. Rubber backed frames straps are secure and paint friendly. Interior key clip. Reflective piping. 40 cubic inches 6.25 Long x 2 Wide x 3.25 High.