Based on the reviews I almost ordered a large instead of a medium and I am so glad I didn't. For reference I am 5' 8" and 150 lbs. The fit is perfect on me and a large definitely would have been too big. A really chunky sweater makes it a little more snug but not uncomfortable. I haven't tested it yet for warmth in super cold weather but I bought this as an intermediate coat when I don't want to wear a giant parka to run errands and it so far it has been good for that.

Fantastic offering from Patagonia. Fit is a bit slim as others have said, but overall a great piece.

The Jacket has a slim fit- so it you have a larger bust....size up.

Gave this as a gift, here's what they had to say:

If you’re thinking about a new Patagonia jacket, this is the one to get. The different patterns on the arms and shoulders are a nice touch and it has so many pockets to hold everything you need. I’m usually a small and I find that this jacket is made to be pretty fitted. It’s fine with a light jacket underneath but if you want a bit of room I’d recommend going a size up.

I am 5’6” 142lbs athletic build with broad shoulders. I ordered a small but The slim fit was too slim and my shoulders felt restricted in this. Love the style of the coat and the mid section fit ok. It would have been tight to fit a sweater or anything thick under this coat. Going to try the medium and hope it fits better.

This is a nice jacket, not too boxy, hence the slim fit. I own a The North Face Thermoball Jacket and wanted something a little different, in black, and thought I'd check this one out. The radalie is slightly heavier than TNF Thermoball, but similar in design. I'm 5'3, l06 lbs., with a 32A bust, for reference and chose the XS. I love the length and the flattering active, slim fit. It is a little longer than most of my jackets, which I like, and for me, this can be comfortably worn with leggings because it covers my bum. The sleeves are tapered so too many layers create a tighter fit around the forearms and wrists. However, I was able to fit a t-shirt and TNF 1/4 zip glacier fleece comfortably under this jacket. It also fits well with just a Smartwool 250 baselayer top. I also like that it is a matte finish and not shiny.

I'm a return Patagonia shopper. Had the nano puff jacket previously and thought it was too thin so needed something a bit warmer but also had a cute style. Love this jacket. Fits great and the green color is great for a pair of jeans and my bean boots. You won't be disappointed

I had two Patagonia jackets already and love each one and this one doesn't disappoint. It's warm, while still being fashionable and tapered. For being a technical jacket it still has great function and style. It's lightweight while still keeping me toasty on chilly days. It fits true to size.