Innovative socks manufactured by Sigvaris in cotton fiber that improve performance and durability. Made with high filament synthetics and special channeled polyester to repel moisture. Recommended for people with circulation problems, varicose veins and swelling. They can also be used during long distance travel or when sitting for long periods of time. Sigvaris uses double inlay yarns and adjust the yarn tension to facilitate the fit and prevent the sock from slipping. The sock promotes circulation and keeps the legs relaxed while helping to prevent swelling and redness of the veins. All Sigvaris products are highly recommended for people who have had or are about to have medical procedures on their veins. They are suitable for all existing lifestyles.