Hot sale waterproof travel laptop with USB charger port backpack stylish backpack PM81011A

Comfortable wide breathable mesh adjustable shoulder straps with plentiful sponge pad help relieve the stress from your shoulder added comfort.With a USB charging port extended on the side of the laptop book bag and built-in a charging cable inside, it offers easy access to charge your phone when you are carrying this backpack on the road via connecting your power bank, offers you a more convenient way to charge your phone while walking. Please noted that this backpack doesn't include the power bank itself, usb charging port only offers an easy access to charge.