Covidien TED - Anti-embolism Thigh High 8-18mmHg Compression Stockings (Open Toe) are open toe, thigh high support hose/stockings designed to prevent thromboembolism, also known as blood clots. With 8-18mmHg of anti-em compression, Covidien's TED stockings feature an open toe, seamless construction, and are suitable support stockings for men and women. Latex free.