Key benefits 1st therapeutic class tights with a revolutionary fabric made of the latest generation of yarns and technologies an extraordinarily elastic knitting makes these easy to wear and comfortable all day long the graduated 1821 mmhg compression is designed to cure varicose veins substantial edemas and is ideal for post varicectomy and post sclerotherapy prophylaxis light and silky elegant and perfect for all occasions modeling top with soft elastic waist and antistress sole in bact