Designed for performance walkers, this highly technical shoe offers anti-roll and lateral rigidity constructs, high rebound cushioning, and superior forefoot flex and stability.a soft, breathable knit upper and a biomechanically designed footbed for comfort that keeps you in motion. Built-in Vio Motion Technology footbed featuring contoured arch support, with shock-absorbing cushioning, deep heel cup to provide stability, and forefoot flexibility.The exclusive alignment technology balances the whole you.