The benchmark is officially set in the Triumph ISO 3. This ride provides enhanced energy underfoot with an increased EVERUN landing zone, while the ISOFIT System delivers a dynamic fit that adapts to your stride. Set standards and elevate your run in the Triumph ISO 3. Updated EVERUN Landing Zone under the heel for maximum energy return at heel strike. EVERUN Topsole construction for enhanced energy return and continuous cushioning throughout the run. Engineered mesh upper for a dynamic, lightweight fit. ISOFIT creates a dynamic fit system by adapting to the shape and motion of the runner’s foot. TRI-FLEX outsole design provides greater ground contact and optimal flexibility.