Thread: Best underwear for both hot and cold.

Jockey Performance Dry Mesh trunks or briefs. Very breathable, light and great for active use, and very very comfortable, no chafing either. I wear these running, hunting, actually its all I wear now. Get them from farmers when they have a sale and the cost isn't bad.

I also agree with the Under Armour statement. The tight fitting tee (what Dwayne Johnson wears like a boss on F&F 5) is a great base layer, wear them in winter and summer as a next to skin layer. Keeps you cool in summer and warm in winter, wicks moisture from body. If it gets cold enough I put a merino top on over it in winter.