The Air-Stirrup II™ is indicated for acute ankle injuries, Post-operative use and (grade I, II, & III) ankle sprains. Features and Benefits Duplex™ Aircell System (pre-inflated distal aircell and overlapping proximal aircell) enhances circulation, reduces the swelling by milking away the edema, accelerates the healing process and helps an early return to function Stylized medial and lateral anatomical semi-rigid shells provide support and protection and help prevent inversion/eversion or re-injury Rear step-in design & strapping configuration facilitates application of the brace Breathable soft mesh liner for increased comfort Foot icon assures correct Left/Right orientation