Runners of any distance will enjoy the supreme comfort and speed in the On Cloudflow. From fast training, road running, racing, 5K runs or marathons, the On Cloudflow is versatile enough for your everyday runs and your¬†speed days.¬† The Clouflow features Ons ultralight Helion superfoam which combines cushioned protection for road running and a responsive and fast feeling to give you the best of both worlds. A CloudTec outsole gives you access to next-level grip for a better hold on the road. The third edition of the On Cloudflow features a new heel hold which provides a more secure fit for sharp corners. Key Information Heel-toe drop: 9mm Weight: 238g Runner profile: Fast training, racing, 10K, half marathon, marathon, tempo running, long interval sessions. Total recycled content: about 20%, Polyester: about 70% recycled Helion‚ superfoam. Grip rubber compound with enhanced traction pattern Made from polypropylene and shaped for speed. "