Fytto"s compression hosiery products use graduated compression to promote blood circulation and push blood from the lower limb back to the heart. Graduated compression means that the pressure is the highest at the ankle and eases along the leg. Compression hosiery can effectively reduce leg swelling and energize the body throughout the day. For those who stand or sit for long hours on a daily basis, Fytto"s compression socks can help you enhance your body conditions and reduce any discomfort due to blood circulation. Style 1067 is designed with reinforced heel and toe for a comfortable fit. Features a non-restrictive band to allow maximum wear time without skin irritation. Ultra breathable fabric ensures a comfortable wearing experience. Designed to increase blood circulation and prevent leg swelling, energizing your body throughout the day and reduce leg muscle fatigue during activities. Ideal for travel and daily wear. Available in Black, Navy or Brown Colors. Suitable for both formal and casual occasions. Material Content: 25% Spandex, 75% Nylon. Sizing Guide: Please order by American shoe size: Medium(8 and under), Large(8.5- 10.5), XLarge( 11 and above).