Unisex waterproof backpackwith compartmentfor 15,16 or 17 inch laptop.Large capacitybag, 35-55L. Ideal for travel, school or college.The backpack hasUSB charging portfor smartphone andconnection for audio headphones.Large capacity and organized: large laptop backpack has20 separate pockets for great storage and organization of small items.3 spacious main multiple compartmentswith many hidden pockets can accommodate many things such as college supplies, travel accessories, clothing, stationery, notebook, cable organizer, deep side zipper pocket for easy access to essentials, side elastic mesh pockets conveniently hold umbrellas travel items or water bottles.External USB port with built-in chargingcable offers convenient charging of your cell phone and other electronic devices everywhere. It has asturdy handle with steel cableat the top for transport. Side compression strapskeep the backpack snug at whatever size you need. Comfortable,breathable wide mesh shoulder strapswith a plentiful sponge pad help relieve stress on your shoulder. Scan smart laptop backpackmade ofhigh quality shockproofpolyester fabric with high density nylon lining,tear resistant, waterproof and durable. Both sides of the shoulder strap with drawstring design for hanging sunglasses and other small items. Perfect for indoor/outdoor activities, international travel, camping, hiking and overnight trips.Great holiday gifts for family and friends.