Unless you're a die hard Marvel fan, you may not be familiar with the lighthearted advetures of one of the franchise's lesser known superheroes. The Marvel Squirrel Girl comic was first printed in 1991 and followed the story of Doreen Green, a.k.a. Squirrel Girl, who left the Great Lake Avengers to become nanny to the daughter of Luke Cage and Jessica Jones before eventually fighting crime with the Avengers on occassion. The Squirrel Girl backpack is a unique print that is an ode to the fun, if not odd, adventures of Marvel's Squirrel Girl!