Firm Stabilization. Stabilize with three way straps.Dual inversion, control strap and stirrup strap based on the taping method. Perfect fitment and alignment. Inbuilt precisely fit stays aligned with ankle shape. A1 offers precise ankle support through the anatomically correct stays. Excellent material. Thin, breathable and comfortable fabric. Made of thin, low profile materials. Offering excellent breathability and anti-bacterial deodorant properties. For correct size please measure circumference evenly and refer corresponding size in size chart. Product Description: Zamst A1, designed for professional athletes, firmly supports the ankle from inversion at landing and turning About Zamst: Born in Japan, Zamst is the ultimate choice of professional athletes. Zamst understands the body, mind and heart of the athletes to create support products which drives them to push beyond boundaries, exceed limits.