[Material]: Oxford cloth, environmental-friendly and durable
[Dimension]: 11.4"L x 5"W x 17"H (29*13.5*43cm), fits for 16" laptop
[Design]: External usb charging port design makes your life more convenient with your electronic devices, so that you can still hold you phone and keep it full power when doing outdoor activities like walking, cycling, schooling and traveling
[Large Capacity] Large main compartment inside is great for your books, clothes, laptop and other daily things, and the additional side pockets can be used to put the bottle and umbrella
[Kind Note]: Only USB CHARGING PORT in the backpack, power bank is not included