The Aircast AirSelect Walker Boot offers a moderate level of support and Aircast's quality, effectiveness, and comfort in an economical model. The main indications for this walking boot are: stable fracture of foot/ankle/lower leg, severe ankle sprain, and post-operative immobilization. SoftStrike technology absorbs and dissipates shock, while the light weight and lab-tested rocker sole combine to encourage a natural gait and a continuation of everyday activities Housed within the shell are two adjustable distal aircells that provide compression and support the malleoli. Trimmable and heat moldable semi-rigid shell makes it easy to custom-fit the brace to the patient.