T.E.D. anti-embolism stockings are clinically proven to be used to prevent the formation of Deep Vein Thrombosis (DVT). By promoting increased blood flow velocity in the legs, these stockings work after surgery to reduce the risk of blood clots that can form in the veins of the legs. Following surgery, a patient may be inactive and lie down for extended periods of time. This causes the blood to flow at a slower rate which may cause clotting. The T.E.D. anti-embolism stockings improve blood circulation by applying graduated compression and are offered in both knee-high and thigh-high lengths and in open or closed-toe.