The New Balance FuelCell Trainer was built to perform anywhere from the gym floor to the concrete jungle. The sporty upper features Fit Weave technology for incredible support and a clean silhouette you can wear anywhere, while the bootie construction with Ariaprene® tongue helps lock the foot in place. A FuelCell midsole delivers comfort and propulsion with every step, and an impressive outsole with strategic lugs and treads offers durability, flexibility and traction.