Forestman Mens Thermal Underwear Long Johns This set of mens thermal underwear is the perfect set for layering for extra protection against the winter in the great outdoors. This is as of its easily fitting design for under your clothes making this is ideal for when you\'re out hiking and need that extra layer of warmth. The ribbed construction of these mens thermal long johns underwear has been designed so that it effortlessly shapes to your body while helping to provide the best fit possible making it hardly noticeable under your clothing. The fabric is designed to catch more of the warmth of the body keeping it close to the skin keeping the body warm for a longer time. The base layer is made of a cotton blend which gives you the most natural softness and comfort for wearing on long walks in cold weather. These long johns are perfect for wearing under trousers as of their tight fit. They have ribbed construction down the legs and comfort waist. The thermal underwear set comes in the colour green and there are matching long sleeve shirt also available in our amazon store. These sets come in 4 size Medium  XX Large with waist sizes of 33 through 46.