Details:

 The New Balance Sigma Harmony v2 is an elite sprint spike with a custom fit and powerful design making it a great option to take runners to the next level.

What You'll Love

• Innovative fitting technology for a customized lockdown
• Full-length spike plate

The New Balance Sigma Harmony v2 was designed for athletes to start strong and finish stronger. The bootie constructed upper along with the Boa Fit system allows for runners to get an unbelievably custom fit. This upper is paired with an 8-pin spike plate that is propulsive and powerful making the Sigma Harmony v2 a fantastic race day option for sprinters.

MIDSOLE

• Nylon TPU Plate provides a smooth transition and powerful push-off. 

OUTSOLE

• Nylon TPU Plate provides a smooth transition and powerful push-off. 
• Contains 8 spike receptacles per shoe. 

UPPER

• Bootie Construction offers an irritant-free wrap with ultimate comfort.
• Synthetic Mesh Upper provides a close fit for optimal comfort and performance.
• BOA Closure System secures the midfoot and includes a heel wrap for a customizable fit.