Very Warm! I ordered a Lrg and received a Leg/Tall, but it fits fine. Slightly large on me (I'm 6', 210lbs), but I love it. I can wear it for casual daily use, or for a more dressed up occasion with a nice button-up shirt.
It's thicker/heavier than I expected, but i think it's going to be just right for my needs!
Highly recommend!