【STORAGE & POCKETS】A separate laptop compartment holds a 15.6-inch laptop as well as 15-inch, 14-inch and 13-inch laptops. A spacious packing compartment holds daily necessities, tech electronics accessories and a variety of other items, making your items organized and easier to find. 【COMFORTABLE AND HANDLEABLE】The breathable mesh shoulder straps with ample sponge padding and the sternum strap make the shoulder straps securely attached to your shoulder, so don't worry about the straps slipping down and hurting your shoulder from a heavy bag. The portable backpack with Airflow three-dimensional ventilation design helps with air convection and heat elimination. 【USB PORT DESIGN】With built-in USB charger on the outside and a built-in charging cable inside, this USB backpack offers you a more convenient way to charge your phone on the go. It is a great tech gift for him from wife, daughter and son. Please note that this backpack is not self-powered, the USB charging port provides easy access to charging. Please remove the USB charging cable when cleaning the backpack. 【WATERPROOF AND DURABLE MATERIAL】Made of water-repellent fabric and durable metal zippers. Ensures safe and long-lasting use every day and weekend. Great for you as an office bag, a slim USB charging bag, a large student bag for boys, girls, teenagers. 【CONVENIENT STORAGE】Laptop backpacks with front zipper, easy to hold a water bottle, reader and a lot of other things, diaries, pens and pencils. Notebook computer bag Side pocket can hold compact umbrellas and other small items. We not only provide you with high-quality products, but more importantly, we provide you with a long-term after-sales guarantee. When you purchase our products, you receive a full range of customer support, so you can shop with confidence and satisfaction.