With a backpack like this your wee lil' one will have no time switching from their mild manner persona to their super-charged one! Superman himself would be jealous; it's not only a functional backpack but one with a CAPE! Yes, A CAPE! That big, omniscient S symbol has become ever-persistent since Superman first arrived on the scene all of those decades ago! Do you think that when they first wrote up the story, that they would've thought it could have possibly gotten this far? Goes from a simple comic strip in the 1930s to a full fledged comic book; spawning shows, movies, and cartoons! Your kid will have no problem remembering their backpack, let's just hope that the school stops giving them so many books or else you really will need a Man of Steel! Measuring roughly 18.5" high, 13" wide and...not sure how deep until you cram it full of your junk......this backpack is made from 100% Polyester featuring adjustable straps, mesh pockets, zipper closure and a hidden cape attached to the backpack!