Bopai 15.6" Backpack Laptop Bag USB Charging Port Rucksack - Faux Leather Convenient Structure - 45 degree back opening position. Back of the backpack have a strap can hold itself on the luggage pull rod that might reduce your burden during traveling. USB Charging Port - This backpack with USB port outside and the corresponding cable is also provided. (Power bank not included). Unique Soft flannel compartment protects up to a 15.6” laptop Invisible Card Pocket Approx. Size: 12.4"Width×6.3"Depth×17.4"Height