JanSport Specter Backpack Ultra functional school/daypack with polyester mesh construction 1large main compartment, cord management pocket and large organizer built in Stores 3 to 4 text books, binder, notebooks, calculator, cell phone, pens, tablet, computer, power cords Padded s curve shoulder straps 1700 cubic inches of storage; measures 18"x12.5"x 7"