Casual Durable Canvas Backpack with USB Port for Men

Charge phones with power bank keeping in hands is always annoying, especially when you are outdoors. This backpack with USB port is just designed for solving this problem. With built-in USB port outside and built-in charging cable inside, this backpack offers you a more convenient way to charge your phone. 

Main Features
● Large capacity for storing essential belongings
● USB port, easy access and convenient to charge on-the-go
● Made of canvas material, durable and scratch-resistant
● Comfortable and adjustable shoulder straps, reduce the burden of shoulder
● Stylish design, makes you outstanding from others

Product Details
● Size: 32 x 16 x 49cm 
● Shoulder strap length: 40 - 78cm