The 100% polyester Deadpool Face Backpack measures 16'' by 13'' and was heavily used during the Weapon X Program by members and scientists of the program. Truth be told, the Deadpool Face Backpack is probably what gave Wade Wilson the idea for his costume! Wouldn't that be a bit of a paradox! You'll only know if you have the adjustable Deadpool Face Backpack. It makes the most sense.