Keep your toes warm with the Heat Holders Men's Lite Mason Merino Solid Wool Outdoor Crew Socks. The advanced thermal yarn offers warmth, and the thermal Merino blend composed of 54% acrylic, 36% wool, 5% nylon, 4% polyester, and 1% elastane retains heat. The reinforced heels and toes enhance durability, and the brushed interior feels soft. Heat Holders Men's Lite Mason Merino Solid Wool Outdoor Crew Socks Black - Western And Thermal Socks at Academy Sports