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Sigma Harmony Spike

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Details

Fine tune your speed with the Sigma Harmony. With a lighter, sleeker upper and a new full length spike plate, the Harmony was designed to help bring finesse to distances under 400m. Inspired and tested by athletes like Trayvon Bromell, the new spike plate creates a smooth but powerful transition underfoot. A knit heel and sleek upper construction provide structure where you need it with simplicity where you don’t. This is pure, primal speed.

Features

  • 8 Spike Configuration
  • BOA Fit System
  • Bootie Construction
  • Knit Upper
  • No Sew Overlays
  • Removable spikes

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