Sigvaris Sheer Fashion Calf High Compression Socks used for Compression Therapy patients. Designed for women, the Sigvaris 120C Knee Highs have a moderate compression range of 15 to 20 mmHg to treat varicose veins and mild leg swelling. The socks are fashionable stockings for office wear or for a night on the town. Featuring bubble toe construction and a reinforced heel in a Closed Toe Stocking. These are comfortable and durable. This sheer fashion hosiery will keep you comfortable during extended travel.