Description : 17.3 Inch Hard Shell Laptop Backpack,Anti-Theft Waterproof Business Travel Computer Backpack Black Gaming Laptop Bag with USB Port for Men Anti theft backpack is made of special ratio hard shell and high density waterproof oxford on the outside, shock-absorbing RB wave point cotton and tear resistant polyester on the inside, and equipped with SBS brand water resistant coating dual zippers Unique double layer TSA smart customs lock design can protect the security of the items in the hard shell backpack With a hidden anti theft pocket on the back of the TSA laptop backpack protect your valuable items from thieves Dimensions: 18.9 x 12.6 x 6.3 inches Capacity: 25L Roomy main compartment fits books, files, chargers, keys, daily carry stuff and so on Separate shock absorption padded computer compartment fits most laptops up to 17.3'' ( Laptop pocket size: 17.3 x 11.6 x 1.6 inches) Adjustable S-shaped padded shoulder straps and anti-slip chest strap can relieves the stress of your shoulder. 3D honeycomb breathable back pad has good heat dissipation properties to keep your back dry and cool in summer External USB charging port with protective cover and built-in charging cable This smart backpack is very suitable for you to charge your phone while walking |