Ready to go any distance, the third generation of this running shoe is lighter and more comfortable than ever. Breathable mesh upper with durable synthetic overlays. Heel Clutching System™ improves support and creates a better heel fitting environment. FluidRide™ midsole technology combines ultimate bounce-back and cushioning properties with reduced weight and exceptional durability. Rear- and forefoot GEL® Cushioning Systems and Impact Guidance System (I.G.S®) absorb and disperse shock during impact and toe-off phases, allowing natural foot movement as you move through the gait cycle. DuoMax® Support System consists of a dual-density midsole positioned to enhance support and stability. Solid rubber outsole for durability and traction. Wt. 10.7 oz.