Large Capacity: laptop backpack with triple spacious compartments and more than 10 storage keeps your items in its place. e.g. laptop(15.6 inch), Macbook, iPad, books, clothes, key, PowerBank etc. Ergonomic Comfortable: Adjustable S-shape wide shoulder straps and Multi-panel Airflow back design provide your shoulder and back with breathable, soft and comfortable carrying feel. USB Charging Port: Connecting Power Bank (not included) with USB cable inside, hands release to charge your phone or other electronic device while walking. Water Resistant: backpack is made of premium water resistant and durable polyester fabric to protect your stuffs inside from getting wet in light raining day.