A bit itchy
First, I should say I own several comparable shirts from Pata_nia & Sm_rt Wo_ol. I'm 6'1" & 170 lbs and this one fit's me very well in a large (medium was tiny, not even close), better than the SW one which is a little short and large in the body for a large. I wanted to love it, however the deal-breaker for me is that it is the itchiest of the three by far. To be fair, the Pat. one is 20% polyester, but the SW one (which is 100% merino) is by far the softest of them all. Ended up returning this as I felt I wouldn't wear it when I have others which are more comfortable.