【STORAGE SPACE & 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 for daily necessities, tech electronic accessories, and a multitude of other items keeps your items organized and easier to find. 【Comfortable and Robust】The breathable mesh shoulder straps with ample sponge padding and the chest belt keep the shoulder straps securely on your shoulder, so you don't have to worry about the straps slipping down and hurting your shoulder from a heavy bag. The laptop backpack with Airflow three-dimensional ventilation design helps with air circulation and heat dissipation. 【USB Port Design】With a built-in USB charger outside and a built-in charging cable inside, this USB backpack offers a more convenient way to charge your phone while 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. When cleaning the backpack, remove the USB charging cable. 【Water-Repellent and Durable Material】Made of water-repellent fabric and durable metal zippers. Ensures safe and long-lasting usage every day and weekend. Serves you well as an office work bag, slim USB charging backpack, large student bookbag for boys, girls, and teens. 【Practical Storage】The laptop backpack's front zippered pockets are easy to store a water bottle, reading glasses, and a multitude of other items, a notebook, pens, and pencils. The notebook computer bag has a side pocket that 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."