These double layer thermal socks help to alleviate Raynaud's symptoms. The thermal yarn provides performance insulation and softness and double layer construction binds together two socks into one, creating a thermal cavity holding additional warm air, increasing the TOG rating. The thermal brushing process also maximises the amount of warm air held inside each sock. Size 4-8. Over 9x warmer than basic cotton socks 3.1 TOG Thermal yarn for extra insulation and super softness Double layer construction, increasing the TOG rating Thermal brushing holding more warm air UK Size 4-8 MAIN: 89% acrylic, 8% polyester, 2% nylon, 1% elastane LINING: 90% acrylic, 7% polyester, 3% elastane Machine washable - recommended at 40 degrees Know someone who would love this? Use the social icons below to share