On Running Cloudmonster

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. – 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