On Cloudflow Sneakers CloudTec® combines with an enhanced high-propulsion Speedboard™ for soft landings and powerful take-offs. Reshaped cloud elements deliver additional cushioning at the forefoot and support a natural foot strike. The Cloudflow offers on-the-road cushioning without weakness thanks to Helion™ superfoam. For your strongest performance yet. Show your rivals a clean set of re-engineered heels. The next-generation Cloudflow features an updated design for even more hold, comfort and durability. Worn twice to try out but were too small.