This is a backpack with many functions. It was waterproof, anti theft and the design accords with ergonomics, comfortable in the back, stylish and generous in appearance, which is the best choice for outside.

UPC: 791318559631
Features:
It comes with USB function, offers a convenient charging for your electonic devices.
It can hold basic thing that you needed for out, such as laptop, wallet, phone.
Science burdened system, breathable and decompression.
Waterproof and wearproof fabric.
There is a dual-USB port at the back of the solar panel, plug and charge.
The back zipper is designed not only to prevent theft, but also to have a headphone mouth for convenient music listening.

Specifications:
Color: blue, red, black (optional)
Material: polyester, EPE
Solar panel: 7W, 5V/1A
Item size: 46 * 31 * 19cm / 18.1 * 12.2 * 7.5in
Item weight: 950g / 2.1lb
Package size: 46 * 31 * 5cm / 18.1 * 12.2 * 2.0in
Package weight: 980g / 2.2lb

Package list:
1 * Backpack