About This Material and Size: KEOFID laptop backpack is made of 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, 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). USAGE:This water resistant laptop backpack will be a good backpack for College. Also as a casual travel backpack for travel, work backpack for business. A good choice for men and women, present for Special Days.