▶ Large Capacity: One separate laptop compartment fits 17.3 inch Laptop as well as 15.6 inch, 14 inch and 13 inch Laptop. One spacious main compartment fits magazine, light clothes or travel supplies. Besides, the travel backpack owns a lot of independent pockets for large 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 bag comes with a charging port you can link your phone to and easily charge during outdoors and travel. Place your power bank inside the bag and connect your phone to the outer port (built-in charging cable inside). Please note that this travel bag doesn't power itself, usb charging port only provides easy access to charge. | ▶ Multi-functional Design: Tech backpack with back U shaped three-dimensional ventilation design helps with air convection, ventilation and heat elimination. Wide breathable mesh shoulder straps with plentiful sponge pads help relieve the stress from your shoulder. The back of the backpack luggage strap design makes the journey easier. In addition there are anti-theft pocket design, shoulder strap non-slip buckle design, card pocket design, etc. | ▶ Water Resistant Backpack: The computer backpack is made of Oxford fabric with high density nylon lining, which has good waterproof performance, protects your belongings from splashing water and rain, is perfect for traveling, working, daily life, etc. | ▶ High Quality YKK Zippers: Smooth two-way zippers are a very important component of the men and women casual daypack backpack, which are made of heavy duty metal material, wear-resistant, anti-oxidated and easy to slide and work smoothly. The zipper pull-tabs are durable, good-sized and elegant in design.