I need to replace my long johns/long underwear. It has been 15+ years since I have had to buy any or looked to see what is on the market. In the past I have been happy with the military style poly pro sets. They are cheap have kept me warm when other types didn't. A downside in that they can be bulky and a little heavy compared to other materials. Not a huge concern but every once matters as I get older.

What is the latest and greatest that works?

I have been looking into the Merino…

What long underwear are you using to keep warm