When you have a lot of extra books and such to carry around, this Hopper backpack is the item to help out. This backpack measures 4" x 15" x 11" in size to give you plenty of room for packing up your belongings. Features of this color-blocked bag include a main compartment with a zipper closure, a front slash pocket, and a side mesh pocket for water bottles. It also has adjustable, padded shoulder straps. Go the trendy route for your next campaign and customize this backpack.