In the season's most versatile colorway- the Natalie pump- with and elastic trim and rubber sole for glove-like fit and glamour-on-the-go. Vio-Motion Support is the evolution of the unmatched Vionic biomechanical technology. Vio-Motion facilities unstoppable movement with trusted support. Stylish and comfortable footwear that incorporates a podiatrist designed biomechanical footbed.