Attenuates shock during impact and toe-off phases, and allows movement in multiple planes as the foot transitions through the gait cycleVertical flex groove decouples the tooling along the line of progression for enhanced gait efficiencyA blown AHAR rubber compound for enhanced cushioning and durability in the forefootImproves bounce back characteristics and decreases midsole breakdown; Enhances gait efficiency while providing midfoot structural integrityHigh abrasion rubber is placed in critical areas of the outsole for exceptional durabilityWith ample breathability and a padded, inflatable ride, this flexible road runner is designed to reach the distance. See all photos as they are part of description