Portable solar backpack with solar panel 

Feature:

SAFE & EASY TO CARRY: Fixed Hidden Zipper and luggage strap: Equip with hidden zipper to help

prevent theft and keep your wallet and other items inside secure while travelling. A luggage strap allows backpack fit on luggage/suitcase,slide over the luggage upright handle tube for easier carrying.

USB CHARGING PORT DESIGN:With a built in USB charger outside and a built in charging cable

inside,this usb bag offers you a more convenient way to charge your electronic device anywhere.

This backpack doesn't power itself,you need a power bank to charge it.

VARIES FUNCTION BACKPACK:Varies function pockets for pens ,phone ,wallet and some slim

15.6 inches laptop,elastic band design and velvet inside material laptop compartment to protect your laptop.

COMFORTABLE SHOULDER STRAP AND BACK DESIGN: Padded and adjustable shoulder

straps offers light-weight carrying,EVA back material will potect your back and your laptop in heavy carry,ventilate and comfortable.