USB Solar Charging Backpack 16 inch Laptop Bag Travel Camping Waterproof Shoulder Bag Student A4 Book School Bag Business Daypack with USB2.0 Charging Port

This backpack is made of tear resistant nylon fabric, with nice durability, high sturdiness and b toughness. The shoulder straps are made of breathable mesh with built-in soft foam, soft and with nice shock absorption, with adjustable buckle, easy to adjust the length of the shoulder belt. Backpack with enough space to reasonably store your belongings. The exterior of the backpack is equipped with a solar panel, through the sun's thermal energy absorption and transfer into electricity, the maximum output supplying current is up to 5.3W. Suitable for both men and women, suitable for various activities such as camping, hiking, traveling, daily commuting, business trips, cycling, and more.

Adjustable Shoulder Belt: The shoulder straps are made of breathable mesh with built-in soft foam, soft and with nice shock absorption, with adjustable buckle, easy to adjust the length of the shoulder belt.
Large Capacity: Backpack with enough space to reasonably store your belongings, can accommodate 16-inch laptop, A4 magazines and books, cellphones, water bottles, energy drinks, umbrellas, wallets, keys, etc.
Solar Charging Design: The exterior of the backpack is equipped with a solar panel, through the sun's thermal energy absorption and transfer into electricity, the maximum output supplying current is up to 5.3W, there is a sunlight there is a electricity. 
Wide Applications: This backpack is suitable for both men and women, suitable for various activities such as camping, hiking, traveling, daily commuting, business trips, cycling, and more.

Specifications:
Name: Backpack
Color: black
Material: nylon fabric
Battery: 1 * built-in 2600mAh battery (included)
Item Size: 490 * 320 * 200mm/ 19.29 * 12.60 * 7.87in
Package Size: 490 * 320 * 50mm/ 19.29 *12.60 * 1.97in
Package Weight: 870g/ 1.92lb

Packing List:
1 * Backpack