Seth B.wrote a review of Fjallraven Raven Jacket - Men's on March 7, 2017
Familiarity: I've used it several times
Fit: Runs large
I wear a 40r-42s in blazers (depending on the brand), a M in normal shirts and a L in "slim fitting" shirts. I'm 5'9", 180lbs. I ordered a Small, and it fits just right. I can fit my Patagonia Nano-Air (sized M) underneath it fine. I've worn it in the snow and light showers; the jacket has gotten wet and dries quickly. And it looks great. My wife is so pleased I'm not wearing something sporty-looking.