One spacious packing compartment roomy for daily necessities, tech electronics accessories and a bunch of other items, make your items organized and easier to find. With built in USB charger outside and a built-in charging cable inside, this USB backpack offers you a more convenient way to charge your phone while walking. Made of Water Resistant Fabric and Durable metal zippers. Ensure secure & long-lasting usage everyday & weekend. A luggage strap allows backpack to fit on luggage/suitcase, slide over the luggage upright handle tube for easier carrying. Well made for international airplane travel and day trips as a travel gift for men and women.