Storage Space and 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 a lot of other things, makes your things organized and easier to find. Comfortable and SturdyThe breathable mesh shoulder straps with plenty of sponge cushion 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 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. 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 a lot of other things, notebook, pens and pencils. The laptop bag has a side pocket that can hold compact umbrellas and other small items.