Made of 92% polyester and 8% spandex, the thermal underwear designed using double-seamless technology with top quality thermal properties. The inner extra fleece gives this base layer of feature of heat retention. The fleece lined underwear includes thermal tops and bottoms, which is really light, soft and comfortable, especially for keeping warm in cold weathers. Ensure that the thermal long johns for men will bunch around your waistline or sleeves and reduce heat loss.

Men’s thermal base layer is designed with four way stretch compression for your freedom of outdoor activities, which makes it easy for you to fit the long thermal set well and move without feeling uncomfortable.