Seamless open-mesh upper eliminates irritation and chafing for a breathable, comfortable fit that lets you focus on your run. Independently placed Discrete Eyelets evenly distribute lace tension across the top of the foot for secure lockdown. ComforDry sockliner adds extra cushioning and prevents the growth of odor-causing microbes, keeping feet fresh through your longest, most challenging workouts. Heel and forefoot GEL Cushioning Systems are set close to the foot, replicating the feeling of natural tissue and allowing the shoe to become an extension of your foot. Impact Guidance System's linked components work together with Guidance Line's deep vertical flex groove to encourage a smooth transition from heelstrike to toe-off, creating a more efficient running stride. FluidRide midsole for responsive cushioning that returns energy with every step. Solid rubber outsole for durable traction on any surface. Wt. 11.3 oz.