Zeraca Laptop Backpack Rucksack for Primary Middle High School Campus (Black) Dimensions: 17.5'' x 13'' x 2'', Weigh:1.45lbs Structure: 1x main layer, 1x subordinate layer, 1x front layer, 1x outer zipper pouch, 1x inner zipper bag, 2x outer mesh pockets Fits laptop with up to 15.6'' screen Polyester fabric with easy clean full lining Ergonomic Design: cushioned shoulder straps with soft breathable mesh for extra comfort and stabiliy