Made of water resistant, durable and breathable nylon fabric. Dual padded, reinforced and adjustable shoulder straps provide optimum comfort and fit snugly around your shoulders allowing.Built-in USB port design allows you conveniently to charge cell phone by connecting power bank without opening backpack on the go.The laptop lining can put an 15.6" laptop. Outer: 2 front zipper pocket, 2 side pockets and 1 front pockets . Wide Open Design, rectangular opening providing easy access to the items at the bottom. Not be too bulky but roomy for everything you need.You can use it as college school bookbag, business travel backpack, laptop backpack purse, carry-on bag, doctor teacher backpack, diaper/mom bag and a luggage for short trip.Support custom logo.