Embrace the ethereal grace of your updated Men's On Cloudflow 4 running shoe. Its forward-rolling, lightweight cushion gives you explosive power with every toe-off. Experience a smoother, more secure stride thanks to the CloudTec cushion and Helion Superfoam. The 100% recycled polyester woven upper is designed for speed, just like its ultra-fast cousin, the Cloudboom Echo! Plus, with a new and improved lining and increased cushioning, no other shoe provides the combination of comfort and power found in your CloudFlow 4 - so you can beat your personal best in style.