Inflatable bladder incorporated into liner for increased immobilization of the lower leg,ankle and foot. Designed for the treatment of stable fractures and ankle sprains. Lightweight for patient comfort. Cushioned heel for greater energy absorption. Wide rocker bottom design promotes a smooth energy conserving gait. High height designed for the treatment of stable fractures and ankle sprains. Low height designed for less serious injuries such as stress fractures and post-operatively for foot procedures.