Helps with healing and sets range of motion in 5-degree increments to allow for controlled activation of calf muscles to reduce atrophy. Minimizes ankle joint stiffness and accelerates physical therapy. Includes Achilles wedge sole and detachable sole for in-home/sleeping cleanliness. Vacuum technology makes liners rigid to mimic a cast. Adjustable calf widths to accommodate patients. Three levels to increase foot-bed length