FENRUIEN Business Travel Backpack for Men, Expandable Water Resistant Computer Backpack with USB Port, Black Laptop Backpack 15.6 Inch for College/Work

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EXPANDABLE DESIGN ]:
Dimensions: 17.7 x 12.6 x 7.1 - 10.1 inches. Expandable backpack has smooth zippers on the side of the main compartment. Once pull on the zipper, the bag will offer a large capacity up to 38 L for you to store more stuff
[ UPGRADE USB-C ]: FENRUIEN smart backpack gives you a provision to connect your power bank and gives you access to it via USB port outside on the backpack (Power bank is not included)
[ TSA FRIENDLY ]: It can be opened 180 degrees for airport checkpoint. When you pick up your check-in luggage, sling this travel backpack over the handle using the built-in back strap to keep your hands free throughout the airport
[ LONG-LASTING MATERIAL]: Slim backpack is made of 900D water resistant PU coated oxford fabric and smooth YKK zippers (Zippers are not waterproof), which gives your electronic and precious items provide adequate protection
[ COMFORT & CONVENIENCE ]: The ergonomic straps and breathable mesh backing help to ease pressure on your shoulders and stay comfortable. It is also equipped with an adjustable chest strap for extra stability while you' re walking or cycling