The Heat Holders Lite Thermal Socks offer a thinner, yet highly effective, thermal solution. Designed to fit into regular shoes and trainers, these socks provide exceptional warmth with a TOG rating of 1.6, making them four times warmer than basic cotton socks. They feature Heat Holders' specially developed thermal yarn for superior insulation and moisture-wicking, innovative knitting technology for extra-long, air-trapping loops, and an expert brushing process for maximum warmth and comfort. Available in various stylish marl twist patterns, these crew-length socks are perfect for keeping your feet warm and comfortable during colder months. Made from 93% Acrylic, 6% Polyester, and 1% Elastane, they are machine washable at 40°C and can be tumble dried, though line drying is recommended for longevity.