TRAVEL BACKPACK MATERIALS- Stylish backpack made of eco-friendly waterproof canvas, soft and fashionable, classic and minimalist design really stands out from the crowd!Large Capacity Backpack：16"x 11"x 8"(42*32*20 CM) FUNCTIONAL BACKPACK - Inner: main pocket can fit up to 15.6’’. 2 small open pockets. Outer: one front side pocket and 2 side pockets CONVENIENT USB PORT DESIGN：Built-in detachable USB cable design, great convenience for charging your electronic devices via connecting your own power bank. (POWER BANK IS NOT INCLUDED) LARGER CAPACITY- Can hold 15.6" computer, tablet, glasses, wallet, keys, earphone, power bank, cell phone, document and clothes. It will be a perfect bag for Men, Women. WATERPROOF STURDY LIGHTWEIGHT - Made of water resistant and durable nylon fabric. Padded breathable and adjustable straps won’t dig into your shoulders, help you release the stress of shoulder Super faint marks on the bottom inside the bag but no other signs of wear.