Multi-compartment Backpack: One separate laptop compartment fits 15.6 inch Laptop as well as 15 inch, 14 inch and 13 inch Laptop. One spacious main compartment fits magazine, light clothes or daily supplies. Besides, the slim backpack owns a lot of pockets for storage and organization for small items, hidden zipper pockets for additional anti theft protection on the back of the backpack. USB Charging Port Design: The laptop backpack comes with a charging port you can link your phone to and easily charge during outdoors. Place your power bank inside the bag and connect your phone to the outer port (built-in charging cable inside). Please note that this backpack doesn't power itself, usb charging port only provides easy access to charge. Comfy and Breathable: Tech backpack with back U shaped three-dimensional ventilation design helps with air convection, ventilation and heat elimination. Wide breathable mesh shoulder strap and back with plentiful sponge pads