Soarpop School/Business Casual 15.6 inch Laptop Backpack Material: Water-resistant 1680D Oxford nylon fabric.Breathable and Comfortable. Dimension: 14.2*6.7 *22.8inch. Easy to fit 15.6inch laptop,Large capacity can carry more clothes and books. BOTTOM ZIPPER TO EXPAND CAPACITY ABOUT 3 LITERS. Business and leisure atmosphere,multi-functional practical design Special custom zipper head, after quality tested,smooth easy to pull and hardly stick. Multiple reinforcement stress position of computer bags,exquisite craft increased the service life of the bag.