- **Well-Made Backpack**: Crafted from eco-friendly and waterproof polyester fabric. - **USB Port Design**: Equipped with a built-in USB charger outside and a charging cable inside. Offers a convenient way to charge your phone while on the move. Note: The backpack does not power itself; the USB charging port only provides access to charge (POWER BANK IS NOT INCLUDED). - **Larger Capacity & Multi-Functional**: Dimensions of the backpack are 11.2(L)*7.5(W)*17(H) inches. The main pocket can accommodate up to a 15-inch laptop, while the back zipper pocket can hold a small tablet. Additionally, there are numerous small multi-pockets for organizing various items such as glasses, wallet, keys, earphones, power bank, cell phone, and documents. - **Features**: Available in multiple colors with a humanized design. Features a well-knit luggage strap for convenient attachment to the trolley of your luggage. Leather handle buckle adds a touch of fashion and ensures safety and comfort.