Premium blend of Merino wool and cotton for total warmth and bind free comfort. The Simcan Comfort Merino Wool Mid-Calf Socks provide all the features of the Simcan Cotton Comfort Sock but are knit with warm insulating wool on the outside and soft combed cotton on the inside for added warmth and moisture absorbency. They are designed to fit even the widest calf and yet not bind or restrict the wearer s vascular circulation. The miracle stretch fibers make them resistant to slipping on the ankle. It is the only choice when both warmth and comfort are desired. FEATURES: Non-Binding Top - Will not bind or restrict circulation on most legs Low Profile Seam - Helps eliminate irritation at the toes Miracle Stretch - Fits most leg sizes Sag Resistant - Maximum resistance to slipping on the ankle Easy to Put On - Ideal for people with limited mobility MATERIAL: 56% Merino Wool 36% Combed Cotton 6% Nylon 2% Spandex