The specially developed advanced fibers provide high performance insulation against cold with superior moisture wicking abilities * The innovative long looped thermal pile knitting technology products a unique, extra-long looped cushion pile to hold in more warm air, increasing the thermal tog rating * Using an intense brushing process produces a soft brushed inner fabric that maximizes the amount of warm air held inside the socks for all-day warmth and comfort * Men"s shoe size US 7-13 * The ultimate thermal sock