Original MT® Men Thermal Underwear Set (shirt + pants) - Warm, soft and breathable hypoallergenic fiber! - Sizes M-3XL selectable - quality of celodoro (Textiles)
If the underwear fits properly they can be worn well. Preheat doing well although I have also significantly warmer U-laundering. Pricewise I believe that you get something cheaper U-wash at discounters, but it does not know. Otherwise OK.