New Balance FuelCell SuperComp Trainer v2 - Women'sThe seconds count performance of race day ready energy return technology comes to a high mileage training shoe. Featuring Energy Arc technology, the FuelCell SuperComp Trainer v2 is designed to look, feel, and perform differently. Features Energy Arc pairs sport specific carbon fiber plate geometry with strategic midsole voids, designed to increase stored energy to deliver a higher amount of total energy returned FuelCell foam delivers a propulsive