Welcome to our store Size:L:30*W:20*H:43CM(L:11.8"*W:7.8"*H:16.9"inch) WELL MADE BACKPACK: This fashion backpack made of eco-friendly and waterproof nylon fabric, with durable and classic metal zippers. Comfy and fashionable. USB PORT DESIGN: 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. Please noted that this backpack doesn't power itself, usb charging port only offers an easy access to charge(POWER BANK IS NOT INCLUDED). MULTI USE: Lightweight stylish backpack, perfect for business, short trip, ,weekend getaways, shopping, professional office work,leisure, hiking, camping ,overnight stay and other outdoor activities. Also, it is a perfect college high school student backpack for boys,girls,teens,women and men. Multipurpose: the backpack perfect to throw under your seat on an airplane when you are traveling or on business trip. Suitable for commuting or carry-on, can be easily stored. Good choose for a business laptop backpack, work backpack, office work bag for men and women, also will be a good choose for college high school student big student for boys, girls, teens, adults