Brand New Material and Size: laptop backpack is made of high quality water-resistant, tear resistance fabric provides a sturdy and chic exterior. The backpack SIZE is 17.3*12.6*7.2 inches, easy to organize all personal items and fit up to 15.6\" laptops. Classic Design:Total 4 compartments and two side pockets,main compartment with 15.6 laptop pocket and an extra padded sleeve for tablets or Kindle, can storage books and business files while still having room for daily necessities, front compartment with organizer and 2 front pockets provide plenty of capacity for the organization. 2 elastic side pockets can fit different size of bottles. Multi Function: Our backpacks with a built-in USB charging port, easy to charge your phone when on-the-go (Not includes the power bank). With a luggage belt on the back panel, it is easy to put on the luggage handle when travel. One hidden anti-theft pocket to protect your important items.