Material composition: Lycra, nylon flat knit and circular knit. Medi is the world's largest manufacturer of medical compression stockings. Founded in 1920, Medi is headquartered in Bayreuth, Germany, and operates in more than 90 countries on six continents with 1,300 employees and 18 branches. Medical compression stockings (varicose vein stockings), anti-thrombotic compression stockings and preventive orthotics are the company's three main industries. With a product range of more than 320 products, the company is the largest compression stocking manufacturer in Germany. It has grown to become one of the world's leading manufacturers of medical devices.