Designed for the treatment of posterior tibial tendon dysfunction (PTTD), or for early signs and symptoms of the adult acquired flat foot. Depending on the severity of the condition, it can be prescribed for use as part of a conservative treatment to stabilize the condition and help prevent its degeneration, or post-surgically and during rehabilitation. The Aircast AirLift is designed for easy application and adjustment. Innovative rear entry design which allows the patient to slip their foot into the back of the brace. Two straps secure the brace and can be used to adjust fit. These patient-friendly design elements make the AirLift easier to apply than custom braces, eliminate time consuming lacing, and help improve patient compliance.Refer to Shoe Sizing to determine the correct size. Specify Left or Right. Features