Pop Quiz Laptop Backpack - 15" Grey. Head to school with your prized laptop stashed in this Herschel Pop Quiz backpack. It is loaded with zippered and utility pockets for your keys, phone, sunglasses, pens, and more. Your laptop will sit safe inside the special fleece-lined, padded laptop sleeve. This polyester backpack's striped fabric liner, woven label, and waterproof zipper details lend it a classic style. You can listen to your favorite songs with your music player in the bag, as this 15 inch laptop backpack has a media pocket with a headphone port.