Drake Men's Ultimate Comfort Light Weight Merino Socks - Each wool fiber is made of thousands of coiled springs that stretch during use, but spring back to their original position. They feature inherent qualities such as wrinkle resistance, color fastness, shape recovery and the socks breathe with your body. Medium-weight design for versatile wear 40% Merino Wool/40% Acrylic/7% Polypropylene/10% Nylon/3% Spandex Fully cushioned in leg and foot areas for added comfort Reinforced heels and toes for added durability Smooth toe seam Arch support Comfort top with enhanced stay up power Made in the USA! Style: 720