The Pop Quiz Backpack features a reinforced bottom. It is our quintessential back to school bag & has an extended assortment of pockets & organizers. As part of the Crosshatch Edition this Pop Quiz Backpack is constructed from a specially crosshatch woven fabric that resembles a unique grid like pattern. Fully lined with our signature coated cotton poly fabric Constructed from unique crosshatch woven fabric Fully padded fleece lined 15" laptop sleeve pocket Front pocket with internal mesh organizers & key clip Waterproof zipper detail Fleece lined sunglasses pocket Internal media pocket 20L Dimensions: 17.5" (H) x 11.75" (W) x 6" (D)