Runners who were fans of Sauconys Ride series and most recently the Ride 10 will love the Saucony Ride ISO. Feel each step pull you forward with this careful balance of cushioning and responsiveness. UPPER: Engineered mesh for breathable comfort. ISOFIT creates a dynamic fit system by adapting to the shape and motion of the runner’s foot. Flat laces reduce irritation. PWRFOAM absorbs impact and returns energy. EVERUN Topsole construction for energy return and continuous cushioning. Updated TRI-FLEX for force dispersion over a greater surface area while also delivering flexibility and traction.