Blancho [Rossonero Looked ] Multipurpose Outdoor Backpack / School Bag -Purple Overall Dimensions: 17.5 inch H x 11.5 inch L x 5 inch W. Multi-compartment design. Stores textbooks, binder, spiral notebooks, calculator, cell phone, and more External dual pockets feature elasticized mesh, which expands to secure various size water bottles. S-curve shoulder straps with three main compartments for versatile storage This versatile backpack is made for convenience and functionality