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.