New condition, as described. The sizing judgment really depends on what you're going for. If you want a jacket for purely utilitarian purposes and don't mind a ton of space to layer, then follow the sizing chart; had I done that I've got no doubt I could fit one of those huge Carhartt quilted jackets under it. I wanted a utilitarian all purpose jacket fashionable enough that I don't out myself as a psychopath, and so that's how I'm going to rate the sizing.
I'm 73 inches tall, 38 inch waist, 44 inch chest, 225 lbs. I went a step under recommendation on the chest sizing (104-108), and got the recommended height (V-VI). My initial take was that when zipped, the waist size was about where I wanted it, and any minor adjustment would be easily handled by the drawstring. The arms and chest had a lot of space, far too much for me. My height is dead center in the size recommendation, and I found the length about two inches too long.
So then, I took it to the tailor and made several alterations. I had the arms tapered, which eliminated a lot of the slop both in the arm and chest area. I had two inches hemmed off the bottom. I had the button from the hemmed off bit sewn underneath the collar, to hold the loop back when not in use. I also had the expansion joint at the bottoms of the upper pockets sewn down.
Basically, I spent more in alterations than I did on the jacket. That said, today was the first day I had it back from the tailor, it's raining like crazy, the…