Lightweight and super-soft, but with excellent thermal abilities, layer up for warmth with a pair of these men's SOCKSHOP Heat Holders 0.44 TOG Long Johns. The ideal base layer for all everyday situations, you're invisibly insulated against getting cold with a surprisingly fine and low bulk stretch-fit fabric. That special Heat Holders fabric has inbuilt odour control for freshness and is designed to reduce static build-up during wear with an anti-static finish. This men's thermal underwear is, as with all Heat Holders products, created with specially designed materials with fibres that hold warm air close to the skin, delivering a proven TOG rating of 0.44 for warmth. Team these thermal bottoms with a Heat Holders thermal top for your complete base layer system. SOCKSHOP Heat Holders Men's 1 Pack 0.44 TOG Long Johns in Indigo Size: Large