(Adjustable Size, Easy to Put on and Washable) One size fits most, and unlike conventional products, this supporter can be adjusted with a wide range of sizes (improved flat-feet), so it can be worn directly to bare feet or while wearing socks, stockings or shoes. Can be used for everyday use.In addition, the ventilation hole prevents stuffiness, so it can be washed with water, so you can always use it cleanly. After washing, please dry it away from direct sunlight.