JIANGBOMEI Men's Business Backpack, Hard Shell, Large Capacity, 2-Way Expandable Gusset, Fits 15.6-inch PC Laptop, Multifunctional USB Charging Port,

[Material & Design] Made with high-density 1680D double twill Oxford fabric and a unique shape design, it stands upright even when empty. It is also truly resistant to water and dust, making it safe for travel in rainy weather. [Large Capacity & Easy Storage] The bag features a separate laptop compartment made of soft velvet fabric to prevent your laptop from getting caught in the bag, as well as multiple pockets for easy organization and storage of your belongings. It can hold a 2-3 day supply of clothes, A4-sized books and documents, a water bottle, a lunch box, an iPad, and more. [Expandable Backpack] Backpack size: 30x15~22x45cm. The expandable backpack features a smooth zipper on the side of the main compartment. When you pull the zipper, the bag provides a large capacity of 35L, allowing you to store more things (laptop pocket size: 43x28x3cm). [USB Charging Port, Special Zipper, and Breathable Design] This business backpack features a USB charging port on the outside and a built-in power bank inside, making it easy to charge your phone. The backpack features a special zipper for smoother operation and superior wear resistance. The back is also equipped with a soft, breathable honeycomb back pad for added comfort. [Warranty & Service] This business backpack is perfect for a variety of occasions, including business, commuting, travel, and school. It also comes with a 12-month manufacturer's warranty, so if you have any issues while using the backpack, please don't hesitate to contact us. We will be responsible and provide full support until the end, so you can rest assured.