Heat Holders Worxx® Men's Long SocksExtra long length Reinforced heel and toe for durability Advanced thermal yarn More than 7X warmer than a basic cotton sock! Sensationally soft Non binding comfort fit All our ORIGINAL warmth but with a durable reinforced heel and toe. Keep feet warm on the coldest of days and pull on this pair of solid color, long length, reinforced Heat Holders for men, the warmest thermal sock. Thick, chunky and with a massive tog rating of 2. 34, Heat Holders are