This Laptop Backpack is made of water proof and durable polyester Fabric with metal zippers. The separate laptop compartment can hold 15.6 Inch Laptop. One spacious packing compartment roomy is perfect for iPad, mouse, charger, binders, books and clothes. Mesh pockets at side for water bottle and compact umbrella make your items organized and easier to find. With built in USB charger outside and built in charging cable inside, this USB backpack offers you a more convenient way to charge your phone while walking. Great Gift for college high school big student.