There are three zipper layer, the first layer on the backpack large capacity storage bags, features removable computer bags, 15.4 inch computer can be placed second layer for large capacity storage bags, equipped with a cell phone pocket, pencil case , key ring, mesh bag. The third layer is a small storage bag, equipped with two attached bag. The front there is a zipper bag, place small objects such as MP3, has a headphone cable outlet. The side has a pouch and a zipper pocket with elastic mesh bag, can put the kettle. Strap cell phone pocket. Breathable backpack design.