Has Nike ever used the React foam in any tennis shoes? I've been looking for the most cushioned shoes and mostly been using Asics along with Nike Cage 3 and Zoom Zeros. No shoes I've ever tried have come close to the cushioning and comfort as my Nike Epic React 2 Flyknit running shoes. My feet hurt after long matches and when I put on the Epic React's and go walk around it literally makes the pain disappear. It's far superior to FlyteFoam or any other cushioning systems I've felt in tennis shoes. The only downside I can think of is durability as the foam is pretty soft so you'd have to wrap a very durable outsole around it.