Made from 100% polyester, the around 13 inch tall Batman Toss Print Knapsack is an adjustable backpack style knapsack that is entirely covered with the classic black and yellow Batman symbols. Just think about how many Batarangs, cans of anti-shark spray, additional Robin sidekicks, and an oversized penny you'll be able to fit into this thing. You know you want the Batman Toss Print Knapsack!