A super trainer for long runs and tempo runs. Featuring a CloudTec® cushioning system engineered for a highly responsive ride and Helion™ HF hyper foam for max energy return Key features CloudTec® cushioning system engineered for responsive runs Helion™ HF hyper foam for max energy return With a bottom layer of Helion™ foam for durability No plate for less impact – to help keep legs fresh Strong, durable and breathable upper Re-engineered heel construction for multi-hour comfort Enhanced rocker shape for energetic push-offs Support: Neutral