Up your game by optimizing your biomechanics with ultra-firm support. Who is the ultra firm support from 100% carbon fiber arch supports made for? Performance athletes, people with especially flat feet, and those who overpower other insoles. Dash improve biomechanics and deliver superior energy return in a super-strong, ultra-lightweight and nearly rigid insole. NOTICE: The thin, firm nature of carbon fiber may damage the lining in some footwear.
