Men's Winter Thermal Heated Work Heavy Duty Boots Warm Crew Socks 10-13

Material: 80% Acrylic, 20% Polyester Color: Black, Navy, Gray (Only send by random colors) Size: 10-13 (Wash Dark Colors Separately, Dry Low inside out) Extra Warm For Winter Work Outside! Made of extra strong acrylic yarn, and brushed thermal inside as cushion for extra warm and comfort.  Up to 4 times warmer than normal cotton socks. Great for winter outdoor activities.