Seamless mesh upper for a breathable, comfortable fit. Discrete eyelets evenly disperse lace tension, eliminating pressure so you can focus on your run. Impact Guidance System creates a more natural running gait. ComforDy lining wicks away sweat and combats the growth of odor-causing bacteria to keep feet feeling fresh. FlyteFoam provides durable cushioning and support for underpronators. Rubber in high-wear areas of the outsole for durable traction.