STORAGE SPACE & 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 space for daily necessities, tech electronic accessories and many other items, makes your things organized and easier to find. Comfortable and SturdyThe breathable mesh shoulder straps with abundant sponge padding and the sternum belt make the shoulder straps sit firmly on the 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 DesignWith built-in USB charger on the outside and a built-in charging cable on the inside, this USB backpack offers 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 does not power itself, the USB charging port provides easy access to charging. When cleaning the backpack, please remove the USB charging cable. Water-resistant and durable materialMade of water-resistant fabric and durable metal zippers. Guarantees safe and long-lasting use every day and weekend. Works well as an office bag, slim USB charging backpack, large student bag for boys, girls and teenagers. Convenient storageThe laptop backpack's front zipper pockets, easy to store a water bottle, reading glasses and many other items, notebook, pens and pencils. The notebook bag's side pocket can hold compact umbrellas and other small items. Our after-sales team consists of experienced, professional and responsible staff. They will do their best to solve your problems and let you feel our sincerity and care. Buying our products means choosing peace of mind and security.