The AWST Int'l Ladies Aztec Knee Socks are made of a blend of cotton, nylon, and spandex, making them comfortable and breathable. The socks are designed to be durable and moisture-wicking, with an extra stretch opening for a better fit. They are skin-friendly and hypoallergenic, making them suitable for anyone with sensitive skin. These knee-high socks are sized for 9-11 boots, providing a snug and comfortable fit for all-day wear.