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New Balance_Sigma Harmony_BOA_Track Spike_Unisex

New Balance Sigma Harmony BOA

The BOA® Fit System delivers micro-adjustable precision fit, engineered to perform in the toughest conditions on the New Balance Sigma Harmony BOA track shoe with S3.

The Sigma Harmony BOA delivers the added benefit of increased speed and improved ankle stability. 

How to Dial In the Boa Fit System. 

Turn to Adjust

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