Avia I-Tone Avi-Motion Toning Shoes for Ladies - White/Chrome Silver/Limeade/Violet Blaze - 10 M First biomechanically-correct toning shoe on the market Promotes natural walking motion for toning 'n' motion avi-motion technology for a proper, efficient walking stride Breathable leather and mesh upper Archrocker design - lightweight EVA/PU blend midsole and solid rubber outsole Shear Cantilever System and negative heel engineering Get fashiona ...