Shoes Deliver Smooth Fit Across The Day
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
 
-  Mens 4 = Womens 5.5
 -  Mens 4.5 = Womens 6
 -  Mens 5 = Womens 6.5
 -  Mens 5.5 = Womens 7
 -  Mens 6 = Womens 7.5
 -  Mens 6.5 = Womens 8
 -  Mens 7 = Womens 8.5
 -  Mens 7.5 = Womens 9
 -  Mens 8 = Womens 9.5
 -  Mens 8.5 = Womens 10
 -  Mens 9 = Womens 10.5
 -  Mens 9.5 = Womens 11
 -  Mens 10 = Womens 11.5
 -  Mens 10.5 = Womens 12
 -  Mens 11 = Womens 12.5
 -  Mens 11.5 = Womens 13
 
3D knit uppers conform to individual foot morphology within minutes