Light, fast and fully cushioned. Take on training and racing in complete comfort with On's Cloudflow. The Cloudflow makes elite-level technology accessible to any runner. CloudTec in ultralight Helion superfoam combines a fast, responsive feeling with fully cushioned road protection, while the engineered mesh upper offers a reassuringly secure fit whether you're training or racing. Carefully positioned rubber grip traction pads mean turning tight corners just got easier at high speeds. The re-engineered upper creates a more streamlined look for seamless comfort. It is stylish, but it's good for the planet, too – using 70% recycled polyester. Developed with elite athletes, the third-gen Cloudflow can do it faster than ever. The explosive Speedboard loads every stride with spring-like energy. This shoe is engineered for high speeds and maximum comfort, whether you're crushing a 5K or a marathon.