Mens Heat Holders New Twist Thermal Socks Keep your feet warm during the Winter freeze and put these men’s Heat Holders on your feet; the worlds warmest thermal socks. These socks are thick and bulky with an impressive high tog rating of 2.34. Heat Holders are made from a specially developed heavy duty yarn which has extreme thermal qualities to keep your feet warmer for longer. With long pile cushioning these thermal socks will keep your feet cosy warm and comfortable. The inside of each sock has been intensively brushed making them feel incredibly soft whilst trapping warmer air close to the skin allowing your feet to stay warmer for longer. Extra Product Details Thermal Socks Thick Lining Tog Rating 2.34 Duty Yarn Soft Brushed Inner Lining