Men’s 9.5, 2E width Worn only a couple of times. Enjoy! Bring that race-day feeling of energy return and speed to your everyday runs in the New Balance FuelCell SuperComp Trainer. This high-mileage training shoe was designed to look, feel and perform differently than your traditional training shoe. It has New Balancersquos Energy Arc technology, which is an arched carbon fiber plate that is sandwiched in between two layers of their FuelCell cushioning. The geometry of the carbon fiber plate has strategic midsole voids to increase stored energy, which delivers a higher amount of total energy returned.