Details About Women's On Cloudflyer 4 Women's On® Cloudflyer 4 :: Soar ahead of the pack in your updated Women's On Cloudflyer 4. Lace up a shoe you can feel great about, made with approximately 37% recycled materials, and a pledge from On to continue improving. CloudTec® zero gravity foam and Helion™ superfoam combine for a dreamy step-in experience and a soft, responsive take-off with every stride. You'll love the supportive external heel counter and new molded sockliner that make your Cloudflyer 4 running shoes feel secure. Open to offers! 😊