The NBA Jersey Backpack is officially licensed by the NBA and made of real high grade jersey material in team colors. The big pocket is large enough to hold most school books, and the two smaller pockets are designed with pen holders, a personal pocket for a cell phone, and a hook and loop closure for other school accessories.  The zippers are made of durable high quality rubberized material. There is a removable NBA identification card for personalization on the inside back of the jersey, and a metal swivel clip for an accessory NBA® coordinated BALLBAG. Main body of the bag measures 16'' X 10'' X 6''