Laptop backpack with USB charging interface. •Laptop backpack with a double main compartment, one of which features an interior harness to keep your laptop secure at all times. •Capacity for laptops up to 15.6 inch. •Practical external compartments: three zippered front compartments, two side compartments ideal for drinks, umbrellas, etc. and a very discreet and secure zippered rear compartment. •Heavy duty Oxford fabric with water repellent treatment. •USB Port Design, An external USB charging port with a built-in charging cable provides an easier way to charge your phone, tablet, and other electronic devices. Simply plug in the power bank and you're good to go. ( Power bank not included). •Different carrying methods, thanks to the design of the backpack, can be adjusted to your needs, carry it over your shoulder, on your back, like a briefcase or attached to your suitcase, thanks to the rear cross strap. •Perfect Travel Companion: Ideal for weekend getaways, occasional trips, gym, daily work, business, traveling, camping and hiking. It can be used as a school bag, backpack, casual daypack, laptop bag, lunch bag, etc.Oxford cloth