Heat Holders Slipper Socks Keep feet warm, protected and supported around the home in a pair of Heat Holders slipper socks for men. They have the normal warm feeling of Heat Holders and also feature have special grips on their soles, to prevent slipping. With a massive tog rating of 2.34 they are the warmest thermal sock for you - 7X warmer than the ordinary cotton sock (0.33 tog)! These seriously chunky and warm slipper socks are made with a specifically developed extra heavy bulk yarn with extreme thermal qualities and moisture wicking abilities. Their long looped thermal pile created with innovative knitting technology produces the unique extra long looped cushion pile to hold in more warm air - increasing the thermal tog rating even more. They also have a super-soft brushed inner which maximises the amount of warm air held to the skin for all-day warmth and comfort. Finally, their non slip grip on the sole of these slipper socks will help you stay safe around the home, preventing slipping.