Nike Lunatrainer+Featuring advanced sneaker innovations; the Lunatrainer+ is a trainer in its own class. This technologically advanced sneaker sports an upper comprised of mesh for maximum breathability, a Lunarlite foam midsole that is 30% lighter than standard Phylon, and a Nike+ pocket under the sockliner that "talks" to your iPod (Nike+iPod Sport Kit required). It's the perfect trainer for the serious athlete or the novice who is just looking for a comfortable workout sneaker.