Farmalastic Men's Long Stocking Normal Compression TG black is indicated for people who suffer from circulatory problems, swelling or varicose veins. They are also useful for people who spend long periods of time on their feet and their compression power helps to improve blood circulation. It is fastened with a silicone band without lace and has a dense fabric (140 den) and high cotton content. The T-large has an approximate calf circumference of 37-39 cm and ankle circumference of 24-25 cm.*For hygiene reasons, no returns or exchanges will be accepted on this product.