Heat Holders - Mens Knee High Thermal Work Socks: Keep feet warm on the coldest of days and pull on this pair of solid colour, long length, Heat Holders for men, the warmest thermal sock. Combining the Heat Insulation Innovation of Heat Holders and the Extreme Durability of Workforce. Thick, chunky and with a massive tog rating, Heat Holders are made from a specially developed heavy bulk yarn which has extreme thermal qualities. These thermal socks also include a reinforced heel & toe which is designed for durability and is an essential attribute for work socks, offering maximum comfort! These socks are toasty and warm throughout any weather Ideal for those who work outside and need insulation and comfort for their feet. With a 2.34 tog rating, your feet and legs will be 7X warmer than a regular cotton sock even in extremely chilly winter climates. Keeping your feet toasty and warm throughout any weather Ideal for those who work outside and need insulation and comfort for their feet. Ideal inside work boots. These socks are available in Mens 6-11 UK and are made from 91% Acrylic, 5% Polyamide, 3% Polyester, 1% Elastane. They come in Black and they are machine washable. Extra Product Details: Heat Holders Long Work SocksSpecially Developed YarnThermal Brushing2.34 Tog RatingReinforced Heel & ToeThick & WarmIdeal For Outdoor Work7X Warmer Than Cotton SocksMens Size: 6-11