Durable Materials: It’s made of high quality and lightweight canvas and durable polyester lining. Outer Size: 17.7D*13.8L*6.7Dinches. It’s capable of carrying school books and a small-medium sized laptop or tablet up to 14inches. Great Structure: Total 8 pockets--1 main compartment, 1 laptop pocket, 1 front zipped pocket, 2 pockets outside for holding small accessories and water bottles or umbrellas, 2 inner pockets and 1 zipped pocket. Unique Design: The adjustable straps with padding ease the pressure on the shoulder, and the cushion with high permeability material, have never cover sweat when you carry it a long time. Perfect Gifts and Lifetime Warranty: This is a great backpack for girls, it’s a perfect casual daypack and very suitable for school, outdoor, street and other occasions. If for any reason you are not 100% satisfied with our Laptop Backpacks, we will immediately refund your purchase price--no questions asked.