The fourth version of the GT-1000™ is updated with a fresh new upper built with engineered mesh and minimal yet supportive overlay reinforcements. The bouncy SpEVA® Midsole has been engineered to be provide a smooth and cushioned ride, while the DuoMax® Support System and Guidance Trusstic™ System provide excellent support for mild to moderate overpronators. Weight: 9.3 oz. Heel Height: 21mm. Forefoot Height: 11mm.