Review on Thermal Underwear Men Layer X Large Men's Clothing best: Active by Tony Miller

Worn eight or nine hours in 25 degrees F. My husband says they kept him warm and overall he was happy with them. He chooses four stars instead of five because they don't seem to be the most comfortable fabric and he says they are not of very good quality. He's only worn them once (we don't need extra warmth often) so I can't comment on durability.