Whether you need thermal protection outdoors or some extra warmth and comfort at home, these Mens Lightweight Thermal Bottoms will make your life warmer. With a tog rating of 0.44, our men's thermal base layers will keep you warm all winter. Heat Holders lightweight super soft micro-fleece thermal underwear offers ideal stretch properties and comfort seams to allow full freedom of movement and a comfortable, non-chafing fit that’s perfect as a single layer or worn under your regular clothing. Moisture and odour control technology help to keep you warm, dry and fresh all day long, while anti-static treatment minimises the build-up of static and reduces its effects. At the core of every Heat Holders base layer is our lightweight super-soft thermal microfleece, combining performance insulation, comfort and dryness to maximise thermal performance and keep you warmer for longer. 1 Heat Holders® Thermal pants Multiple Sizes available Super warm and lightweight HeatWeaver® soft touch Polyester, Cotton