Classic Multi-Pockets Design -One separate laptop compartment hold 15.6 Inch Laptop as well as 15 Inch,14 Inch and 13 Inch Laptop. One spacious packing compartment roomy for daily necessities,tech electronics accessories. Front compartment with many pockets, pen pockets and key fob hook, makes your items organized and easier to find Lightweight but Sturdy- Made of high quality waterproof oxford fabric, sturdy and wearing-resisting. But it only weighs about 2lbs. Ideal for short trips, daily travelling and business work USB charging port - With built in USB charger outside and built in charging cable inside,this usb backpack offers you a more convenient way to charge your phone while walking. It's a great tech gift for him from wife, daughter and son. Please noted that this backpack doesn't power itself, usb charging port only offers an easy access to charge Back Multi-Functional - A luggage strap allows backpack fit on luggage/suitcase, slide over the luggage