• Form and function deliver ultra lightweight, innovative performance with the New Balance FuelCell MD-X racing spike. This shoe features an updated engineered knit upper for ultimate weight savings. Stacked with engineered technology such as FuelCell foam and a carbon fiber plate, the MD-X gives you forward propulsion and performance-ready style on middle distance track races. 
• FuelCell foam delivers a propulsive feel to help drive you forward
• Lightweight synthetic knit upper with strategic internal reinforcement
• Full-length external carbon fiber plate with six built-in pins for a blend of propulsion and traction
• Lace-up closure for an adjustable fit
• Designed to match Team New Balance colors