Kamabags Student School Book Bag Outdoor Backpack for Boys Girls NEW DESIGN: Classic School Backpack for Boys Girls Bookbag Student Backpack MATERIAL: 100% brand new and high quality water-resistant nylon material Ergonomic Design: cushioned shoulder straps with soft breathable mesh for extra comfort and stabiliy Dimensions: 18.1" x 14.5'' x 5.5'', Weigh: 1.16lbs Structure: 1 x main layer, 1 x subordinate layer, 1 x front layer, 1 x outer zipper pouch, 1 x inner zipper bag, 2 x outer mesh pocket