TN said that this pair of shoes to use the Tuned air (adjustable air cushion), is practically a cushionThe TUNED the AIR was originally used in the Kevin Garnett three generations, when Garnett NIKE&＃39;s endorsement star, and the cushion can be aptly called a "balloon" is placed in a cushion of some of the hemisphere, of course, is also inflated, with a certain degree of flexibility, the flexibility of these spheres to damping.