Left Size Large Men 11.5 -13 Women 13-14.5 Incorporates Clinically Proven Semi-rigid Shell And Aircells To Provide Comfort And Support Additional Compression And Stabilization Is Provided By Anterior Talofibular Cross Strap And Intergral Forefoot And Shin Wraps The Unique Step-in Design (toes First Inserted Into The Back Of The Brace) And Automatic Heel Adjustment Make The Airsport Extremely Fast And Easy To Put On Indication: Ankle Sprain; Chronic Instability; Prophylaxis