Toss the Big Student backpack on your back and cruise the hallways in style and comfort. Slip all your textbooks inside the two main compartments, and store smaller items like pencils and calculators in the additional stash pockets. Featuring ergonomic shoulder straps, even your giant chemistry and literature books won't weigh you down. ergonomic S-curve shoulder straps 2 large main compartments organizer pocket 2 stash pockets water bottle pocket Polyester. Measures 171⁄2H x 13W x 10D. Machine wash. Lifetime warranty. Imported.