LEFT SIZE X-LARGE MEN 13.5+ WOMEN 15 + 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