Powerful zoned high compression panel wraps around the ankle to create a peak pressure zone to ensure better circulation. Lightweight zoned breathability panel surrounds the shin & calf to create a gradient but consistent pressure at the calf while high denier yarns in back ensure maximum muscle stabilization. Flexible tongue zone – minimal fabric at the top of the ankle eliminates pressure points. Engineered foot bed & heel provides optimal support for arch & Achilles, while zoned padding to heel, balls of the feet & toe region offers maximum comfort.