Road train stability smooth plush and stable unite in the road m3 a mid level stability shoe that redefines what is possible in supportive comfortseamless upper provides support and structure in a lightweight seam free packagedynamic offset shaped emotion midsole features our most cushioned midsole platform and is biomechanically tuned for mid foot over pronation11 energy foam in forefoot cushions upon impact and returns energy back to the runner during propulsion11 energy foam in heel cus