【STORAGE & POCKETS】A separate laptop compartment accommodates a 15.6-inch laptop as well as 15-inch, 14-inch, and 13-inch laptops. A spacious packing compartment holds daily necessities, tech electronic accessories, and a variety of other items, making your items organized and easier to find. 【COMFORTABLE AND MANAGEABLE】The breathable mesh shoulder straps with ample sponge padding and the chest strap make the shoulder straps securely attached to your shoulder, so don't worry about the straps sliding down and hurting your shoulder from a heavy bag. The portable backpack with Airflow three-dimensional ventilation design helps with air convection and heat dissipation. 【USB PORT DESIGN】With a 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's a great tech gift for him from wife, daughter, and son. Please note that this backpack does not power itself, the USB charging port provides easy access to charging. Remove the USB charging cable when cleaning the backpack. 【WATERPROOF AND DURABLE MATERIAL】Made from water-repellent fabric and durable metal zippers. Ensures safe and long-lasting use every day and weekend. Suitable for office bag, slim USB charging bag, large student bag for boys, girls, teens. 【PRACTICAL STORAGE】Laptop backpacks with front zipper, easy to hold a water bottle, reader, and many other items, diaries, pens, and pencils. Side pocket on the computer bag can hold compact umbrellas and other small items. We not only provide you with high-quality products, but more importantly, we provide you with long-term after-sales warranty. When you purchase our products, you will receive a full range of customer support, allowing you to shop with confidence and satisfaction.