New Balance Unisex Sigma Harmony Sprint in green and black is 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, the Sigma Harmony offers an alternative to traditional laces for customised comfort and no pressure points.
A midfoot canopy and new knit heel construction hold the spike in place for electric speed.
Note: Unisex shoes are made in men’s sizes. Women are advised to order a half size down.
- Men's Race Day – Competition
- Sprint shoe
- BOA Closure technology
- Type: Spikes/competition
- Weight: 175g / 6.2oz
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