The On Women's Cloud X4 Shoe is a flexible shoe for feeling good during every training session. Built with light stability, take this shoe to the gym for treadmill, bike, weight lifting, resistance training, and more. Featuring star lacing, the criss-cross shape supports and secures the foot inside the shoe, while Helion superfoam at the midsole cushions. Enjoy plenty of forefoot flex and movement from the X-shaped Speedboard and a rubber outsole for traction.