This foldable backpack is made of 210D polyester, features a large zippered compartment with an interior pocket and a front pocket, adjustable shoulder straps for a great fit and dual side net pockets. Measured 12" x 16.5" x 5'' when expanded, and it can be folded into a pouch sized 8" x 6". It is great for running, traveling, hiking, camping, racing, advertising activities and other outdoor events. Add a custom logo on this great promotional item for brand exposure.