For the treadmill or the roads, the streamlined FuelCell Echo will take you beyond the run. Put in the miles with the highest energy return of our performance foams currently on the market paired with a full-length rippled rubber outsole designed specifically for resilient traction and grip. For the runner whose shoes go beyond the run, the FuelCell Echo will take you further than your miles. This running shoe features New Balance's highest energy return of our performance foams currently on the market, plus a rippled rubber outsole for superior traction.