I work outdoors in Columbus OH, but I hate multiple layers. I've bought these Henley's in the past and loved them. My only beef is the length. I'm 5'9" 175lbs, I'm stocky. The Mediums are perfect length to me, but are too tight in chest and too short in arms. The large is great in chest in arms but falls maybe 3"-4" below belt, which seems sloppy to me. But beyond that, I love the quality.