WELL MADE BACKPACK: This fashion backpack made of eco-friendly and waterproof polyester 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). | LARGER CAPACITY & MULTI-FUNCTIONAL: Backpack Dimension: 11.2(L)*7.5(W)*17(H) Inches. Main pocket can fit up to 15’’ laptop, the back zipper pocket can fit your small tablet; and there are many small multi-pockets, you can put glasses, wallet, keys, earphone, power bank, cell phone, document, clothes and baby essentials, etc. (The pictures shows the pocket structure of the backpack more clearly ) | FEATURES: Multi colors and humanized design. A well-knit luggage strap is quite convenient for you to fix the backpack on the trolley of your luggage; leather handle buckle are the best choice of fashion, makes it more safe and comfortable. It is a perfect school bag for men, women, teens, Boys and girls, high school and college students. It is also a stylish nappy backpack, baby diaper backpack for dad or mum. | CUSTOMER SUPPORT: Provide you with high-quality backpacks and service. If you are unhappy with our products, then CONTACT US, professional customer service staff will solve any problems for you.