Come and see our amazing products. 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.A luggage strap allows backpack fit on luggage/suitcase, slide over the luggage upright handle tube for easier carrying. With a hidden anti theft pocket on the back protect your valuable items from thieves. Well made for international airplane travel and day trip as a travel gift for men.Customized is available. Pls confirm further with us if any query about packing info, inventory status and time schedule.