STORAGE & POCKETSA separate laptop compartment can accommodate a 15.6-inch laptop as well as 15-inch, 14-inch and 13-inch laptops. A spacious packing compartment with space for daily necessities, tech electronics accessories and a lot of other things, makes your things organized and easier to find. COMFORTABLE AND STYLISHThe breathable mesh shoulder straps with abundant sponge padding and the sternum belt make the shoulder straps firmly fixed on your shoulder, so don't 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 convection and heat dissipation. USB PORT DESIGNWith 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 while walking. 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. WATER-RESISTANT AND DURABLE MATERIALMade of water-repellent fabric and durable metal zippers. Ensure safe and long-lasting use every day and weekend. Great for you as an office bag, a slim USB charging bag, a large student backpack for boys, girls, teenagers. PRACTICAL STORAGELaptop backpacks with zippers on the front, easy to hold a water bottle, reader and a lot of other things, diary, pens and pencils. Side pocket of the notebook computer bag can hold compact umbrellas and other small items.