Road train neutral a must have for the high mileage neutral runner or a supple yet responsive recovery shoe the road n3 offers ultimate training comfort3 d seamless print upper technology adds lightweight structure and upper integritydynamic offset shaped emotion midsole is biomechanically tuned for the neutral runner looking for maximum cushioning and all day comfort11 energy foam in forefoot cushions upon impact and returns energy back to the runner during propulsion11 energy foam in hee