Size: Width:32(CM)/12.6" Height:50(CM)/19.69" Thickness:24(CM)/9.45"

Color:Black/Gray/Light Blue/Deep Blue/Red/Orange/Purple/Green

Material:Nylon

Style:Leisurely/School/Travel/Commercial

Fashion Element: Waterproof/Burglarproof/Multi-functional/USB Interface

Capacity: Can Hold 17 Inches Laptop,Ipad Air,Purse,Notes,A4 Magazines and Umbrella,ect.

Internal Structure: Main Pocket/Cellphone Pocket/Laptop Pocket

External structure: Front Zipper Pockets/ Side Zipper Pockets

The Backpack With USB Interface To Charge A Cellphone