Keep your toes warm with the Heat Holders Men's Worxx Bruce Contrast Crew Socks. The advanced thermal yarn offers warmth, and the fiber composition of 91% acrylic, 5% nylon, 3% polyester, and 1% elastane retains heat. The non-binding design is diabetic friendly, increasing circulation, and the reinforced heels and toes enhance durability. Heat Holders Men's Worxx Bruce Contrast Crew Socks Black/Yellow - Western And Thermal Socks at Academy Sports