This is a great base layer. I'm 6'1'' and 180lbs and a large is a perfect fit. This shirt is extremely soft and perfect for under a fleece. I like to wear merino and this is my first piece from Icebreaker and I will definitely be buying more! Next time I'll try a 260 weight though.
"Great heavier baselayer for those colder winter days (and nights)"
I purchased this baselayer at the same time as the anatomica one. This version is a bit heavier in weight, as a wanted it - for the colder winter days here in Michigan and for snowboarding. This shirt could keep me warm if just worn with one of my Arc'teryx shells down to 0F, no doubt about it. If you're looking for a baselayer of a bit heavier weight - look no further! I highly recommend this one. I'm 6'2" and 175lbs and chose the large because I like my baselayers to be close-fit, but not skin tight. I could have fit into the medium with no problem, but I like a bit of wiggle room.
I have this and love it. I have the 260 weight and it is also fantastic. This 200 weight I sometimes wear under a dress shirt in the winter and I couldn't be happier with it. It breathes, wicks, doesn't stink, and looks excellent. I will most certainly purchase more. I am 5'8" and 155lbs and wear the medium, and it is not skin tight, which is what I want and it fits like in the photo. To get skin tight, I'd likely need a small.