Elevate your cold-weather essentials with Heat Machine Lightweight Thermal Socks, engineered for those who value style, comfort, and performance. With a scientifically tested 1.6 TOG rating, these socks provide nearly double the warmth of ordinary cotton socks while maintaining a breathable, medium-thickness fit. Knitted with exclusive Heat Machine thermal yarn, they trap heat close to the skin while allowing moisture to escape - ensuring your feet stay warm, dry, and comfortable all day long. Perfect for wearing with boots, shoes or trainers, these socks deliver premium warmth without the bulk. Each 3-pair pack offers unbeatable value, blending durability with timeless design. Choose from a refined selection of plain black, argyle, stripe, or fairisle patterns - versatile enough for men (UK 6-11). 3 assorted pairs will be selected at random. Heat Machine - Guaranteed Warmth.