3-Pairs of Heat Insulating Thermal Socks – For Women or Men – only $8.99 with FREE SHIPPING.  Keep your feet warm and dry with these heat-insulating thermal socks, specially designed to keep your feet warm during the cold winter months. They have been tested to BS4745 standard, achieving a Tog rating of 2.13, considerably higher than normal thermal or cotton socks. A high tog rating provides extra insulation against low temperatures.