Airbac Backpack School Bag Colorful Striped Black Air Bladder Back Support

Airbac backpack in multi color stripe. Has air bladder in back that you can fill to your desired level which helps with back support. The nozzle plug is missing but it seems to hold air fine without it. Uses a needle and pump (like you would use for soccer and footballs) which is not included. Adjustable straps. Good condition. Barely used. There is no zipper pull on the air bladder pocket but that is how they are sold - they don't want you to open it other than to fill it and leave it alone.