Abstract: A travel bag for a motorcycle is disclosed that can be easily attached and removed from a variety of different size motorcycle seat backs or sissy bars and ensures that the bag is secure during motorcycle operation. The bag carries a series of vertically aligned straps on the exterior surface of the bag that faces the front of the motorcycle. Each strap is adjustable in length to fit a variety of seat back widths. The height of the seat back or sissy bar determines how many straps are used. The straps are located on the bag so that the bottom of the bag may rest on the luggage rack when the bag is appropriately affixed to the seat back. Additional straps fasten the bag down to the luggage rack or the seat back itself, to prevent the bag from being lifted off at high speeds.