JanSport Big Student Solid Colors Backpack B1025: Black 600 Denier Polyester, Ergonomic S-curve shoulder straps with two large main compartments 2100 cu in / 34 L, Dimensions: 17.5" x 13" x 10" / 43 x 33 x 25 cm. 1 lb 8 oz / 0.6 kg Fully padded back panel, Front utility pocket with organizer Pleated front stash pocket Side water bottle pocket, Web haul handle.