For support and natural heat, treat arthritis ankle pain with ThermoskinTM This anatomically shaped ankle support uses ThermoskinTM with its patented Trioxon lining to capture your natural body heat to reduce arthritic pain. Constant heat helps open blood vessels, which increases the blood flow to the hurting area, resulting in rapid removal of inflammation. Experience enhanced relief and comfort to achy joints and tissues. Trioxin also wicks away perspiration and keeps your skin ventilated and comfortably dry even when worn for extended periods. Individuals with arthritis find it easy to make adjustments with the quick hook-and-loop closure. Latex-free. Caution: Do not use if you have open sores or ulcerations.