12 Pairs Anti-Embolism TED Stockings Each pair of anti-embolism stockings in this box of twelve are knee length compression stockings are in size extra large, regular length. Sedentary persons at risk for blood clots wear these elastic stockings. These compression stockings are for those with calf circumference 16 inches to 19 inches and leg length of 16 inches to 18 inches from ankle to knee. Medline anti embolism stockings' gradient pressure reduces from the ankle to the knee. Leading medical specialists designed these Medline EMS or TED stockings to give a contoured fit with gradient pressure designed to keep blood and lymphatic fluid flowing in those who are bedridden or do little walking. These stretch anti embolism stockings are knee length. Pressure greatest at the ankle and gradually reduces throughout length of the leg 15-18mmHg . 80% nylon and 20% spandex. Knee length, XL regular leg length. Box of 12 pairs by Medline Industries. This item ships from a separate warehouse and may require extra time for delivery.