Skins Essentials compression socks give you targeted calf muscle support and help improve circulation, making them the perfect socks for any activity where you rely on your legs working hard. Helps reduce lactic acid build-up High quality yarn for consistent, controlled compression Superior moisture management Anti-chafing yard reduces heat, moisture and friction Soft fall cushioning absorbs shock Smooth comfortable toe seams Anatomic left and right fit Knee-length 48-percent polyamide nylon / 29-percent polyamide microlon / 10-percent elsatane / 9-percent polyester / 4-percent polyamide Black with yellow accents XS (calf circumference: 12.5 - 13.5 inches) Sold as pair New