Comfortable athletic fit
Just pulled this out of the box and really liking it around the house. Figured I'd share my experiences regarding fit.
I'm 6'1" 185lbs -- just pudgy enough to avoid anything that fits too athletic. I'm typically a large from companies with a more generous cut (Patagonia, Mountain Hardwear, Marmot etc) while I often have to move up to XL in an athletic cut like Arcteryx. The large is very comfortable with a base layer, just loose enough. I can fit a light mid layer or even 200 weight fleece under it, but it's not quite as comfortable.
I am intending to use this as a casual jacket around town in the summer as well as backcountry use, so I wouldn't mind a bit baggier fit. I tried the XL and the fit was really pretty good for this purpose, but the cuffs on the sleeves were too large to keep them at my wrists, and I knew this would by annoying. So, sizing up for a less athletic fit doesn't work too well with this garment. But, I'm happy enough with the fit of the large; it'll be great for technical use and should do ok enough around town.
Loving it around the house, so I'm excited to see how it handles the elements.