More air, less mass. The Dn8 integrates the Dynamic Air system into a slim, low-profile design. The eight pressurized air tubes provide a responsive feel with every step. The Dynamic Air system extends from heel to toe and sits directly on the rubber outsole to get you as close to the ground as possible for a smoother roll. And the molded upper is covered in a lightweight mesh, while the open mesh in the side slits offers more breathability. Experience an almost unreal feeling of movement.