This is as they have been made from aspecially developed thermal yarn, which works to provide high performance insulation against the cold.
HEAT HOLDERS - Mens & Womens Knee High Thermal Socks | Extra Thick Warm Socks with Fluffy Insulated Inner for Winter | Ideal Socks for Outdoor Boots (6-11, Black)
HEAT HOLDERS - Mens Extra Long Thick Heavy Winter Warm 2.7 TOG Knee High Thermal Wool Rich Socks (6-11 UK, Black)
HEAT HOLDERS - Mens & Womens Knee High Thermal Socks | Extra Thick Warm Socks with Fluffy Insulated Inner for Winter | Ideal Socks for Outdoor Boots (4-8, Black)
HEAT HOLDERS - Mens 2.3 TOG Warm Thick Anti Slip Low Cut Ankle Thermal Slipper Socks | Trainer Socks with Grips for Winter (6-11, Navy)
HEAT HOLDERS - Mens & Womens 2.3 Tog Original Thermal Socks | 3 Sizes | Thick Warm Fluffy Insulated Socks for Winter | Ideal for Raynauds (6-11, Denim)
HEAT HOLDERS - Mens & Womens Knee High Thermal Socks | Extra Thick Warm Socks with Fluffy Insulated Inner for Winter | Ideal Socks for Outdoor Boots (6-11, Charcoal)
