Your new go-to for HIIT sessions. These men's Cloud X 5 trainers from On Running have an engineered open mesh upper to keep things cool. They have extra padding in the tongue and heel for more support, and a sculpted footbed for extra flexibility. A Helion superfoam midsole and CloudTec cushioning offers an ultra-responsive ride, and a rubber outsole delivers grippy traction. Finished with signature On Running branding.. Material: Textile & Synthetic Upper/Synthetic Sole