Red long underwear

For the most part I can handle tough winters and whatever they throw at me. But on those really, really cold winter days and nights, I tend to go for an added layer of warmth in the form of long underwear. Mostly I wear long underwear that covers me from the waist on down, but I have seen full body underwear that covers both the upper and lower areas from neck to ankles. Kind of like the adult version of a “onesie”!
Red long underwear:

Red long underwear pictured:
Carhartt Men’s Midweight Cotton Union Suit.