Aggressive. Bold. Victorious. Meet the all-new Sigma Harmony, designed for the most demanding sprinters. Built on a new plate, this model provides a smoother and more powerful transition than its predecessor. Using BOA Closure technology, it offers an alternative to traditional laces for customized comfort and no pressure points. A midfoot canopy and new knit heel construction hold the spike in place for PR-ready performance.
Unisex fit. Women should order 1.5 sizes smaller than usual.