MATMO Men's Waterproof Outdoor Sports Backpack Bag Travel Backpack Made of durable Oxford cloth fabric, the lining is water resistance, not easy to get wet Structure: 1*main zipper pocket with laptop layer, 2*pen pockets, 1*inner open pocket, 2*side mesh pockets, 2*front zipper pockets. Dimension: 12.4"(L)*22.4"(H)*7.1"(W), (31.5cm*57cm*18cm). Shoulder straps can be adjusted according to your height and comfort requirements. Large capacity, large space to carry all the items for daily use