The GT-1000 has been re-engineered and revitalized, without ever abandoning the qualities that have earned it 12 Runner's World awards in 14 years. The GT-1000 packs performance, fit and cushioning into a sleek package. Mild to moderate overpronators will enjoy the stable ride provided by the DuoMax Support System. DuoMax Support System:A dual density midsole system positioned to enhance support and stability, positioned sport specifically. Guidance Line: Vertical flex groove decouples the tooling along the line of progression for enhanced gait efficiency. Rearfoot and Forefoot GEL Cushioning Systems: Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycle. Trusstic System: Reduces the weight of the sole unit while retaining the structural integrity of the shoe.