duomed advantage compression socks for men and women provide opaque coverage and support to treat the symptoms of vein disease. With a soft, luxurious feel, duomed advantage will keep you feeling comfortable and rejuvenated all day long. duomed advantage calf products are available in closed or open toe options); in 15-20, 20-30, and 30-40 mmHg compression levels); extra-wide calf variants); and in beige, almond, or black colors.