Fabric: Polyester

Features: breathable, durable, anti-theft

USB CHARGE PORT AND WATER REPELLENT FABRIC- 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

ANTI-THEFT 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 .This is super good for travel ,work or school

MULTI-COMPARTMENT BACKPACK - more adjustable main compartment ,equit with varies functions pocket for pens ,phone ,wallet wait

NIGHT SAFETY BACKPACK - There is a Refelctive Stripe on the front of the bag which makes this backpack more conspicuous in the night. 

SIZE AND CAPACITY - Size :26 X 43X 11cm . Shoulder strap is adjustable. Capacity :12-35 L