Usb Charging Backpack

This Backpack apply anti-theft design techology. Zipper of main pocket is fully hidden in the back of this bag ,no theft will easily open your backpack. Equip with a secret pocket which behind the bag. It’s super good for travel ,work or school. External USB with built-in charging cable offers a convenient charging of your electronic device anywhere, and this bag do not include a battery, you need a power bank to charge it. 30degree or 90degree adjustable main compartment ,equip with varies function pockets for pens ,phone ,wallet and some slim 15.6 inches laptop. There is a retro reflective tape on the front of the bag which makes this backpack more conspicuous in the night. This is a safe backpack for you to walk in the night.