Ever gone shopping and bought something with no easy way to carry? This 10 inch x 11 inch x 3 inch travel bag with shoulder strap can be expanded to 22 inches and can be easily strapped to your luggage rack. When compact this bag has three zippered pockets for convenience. Comes with reinforced base for a secure fit on your luggage rack. Two side zipper pockets that are 11 inch x 6 ï¿½ inch plus a top opening storage pocket of 10 inch x 11 inch x 2 inch to handle travel needs and small purchases. A full zipper expands the collapsible bag by 20 inches giving a large 10 inch x 11 inch x 20 inch luggage bag compartment. Includes rack tie down straps.