NIKE Cheyenne Vapor Running Backpack Bag Adjustable harness - for a comfortable, customised fit Nike Aerospan back panel - allows airflow for added breathability and comfort, keeping swe Nike Hypervoid material - at front and back for added stability and comfort. Dual-zip main compartment - with interior laptop sleeve and mesh pockets to keep valuables Zip pocket at base for separate shoe or wet/dry storage.