At home I have worn nothing but this underwear, because it is warm enough that you need in the apartment otherwise. The underwear is easy, warming and actually ensures that the sweat does not remain on the skin and underwear wets. Therefore one must bear directly on the skin of course. With great physical exertion underwear needs is a bit longer until the strong current welding dismantled, but you can - unlike any other underwear '- consistently carry, because it dries the sweat so quickly.
I have washed the thermal underwear far twice and she wears still very pleasant. So good I had not imagined it. I'm excited!