HIGH EFFICIENCY SOLAR PANEL:12 Watts solar panel can convert solar energy into electrical energy to use alone,perfect for travel,outdoor,trekking,hiking,fishing or biking
ERGONOMIC DESIGN:Airflow back design with thick but soft multi-panel ventilated padding,gives you maximum back support.Adjustable shoulder straps relieve the stress of shoulder
DOUBLE USB PORTS DESIGN:With 1 USB Port inside of backpack,1 USB charger built in shoulder strap,the 2 usb ports backpack make it more convenient to charge for your phones
WATER REPELLENT & MULTIPURPOSE:Made from durable, environmentally-friendly nylon fabric with two "s" curved shoulder straps that provide lightweight load and strong reinforcement for business travel, weekend getaways, shopping, professional office work and other outdoor activities. In addition,it can be as a perfect college student backpack and for all boy, girl, teenager, woman and man
More storage: for daily package in our business and fashion style,the dimension: 20 x 12.2 x 5.7 inches with a dedicated laptop compartment holding a laptop less than 17 inches, and 15.6 inches, 15 inches, 14 inches and 13-inch laptop/laptop such as Dell Hewlett-Packard, Asus, Lenovo, Macro Samsung, Sony, MacBook, Laptop.The other side pocket for water, umbrella,easy to take out