FUELCELL MD-X

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

Track Spike Sizing Information (note: sizes in dropdown menu are men’s, see below for conversion to women’s sizes) 

– Men’s 4 = Women’s 5.5
– Men’s 4.5 = Women’s 6
– Men’s 5 = Women’s 6.5
– Men’s 5.5 = Women’s 7
– Men’s 6 = Women’s 7.5
– Men’s 6.5 = Women’s 8
– Men’s 7 = Women’s 8.5
– Men’s 7.5 = Women’s 9
– Men’s 8 = Women’s 9.5
– Men’s 8.5 = Women’s 10
– Men’s 9 = Women’s 10.5
– Men’s 9.5 = Women’s 11
– Men’s 10 = Women’s 11.5
– Men’s 10.5 = Women’s 12
– Men’s 11 = Women’s 12.5
– Men’s 11.5 = Women’s 13