The vest is really cute and comfy. The collar is a little high and the material is a little stiff (due to the windproof fabric), but I'm assuming it will soften up with time and wear. I normally am a XS in Patagonia and ordered XS for the vest, and it fits really nicely. Since it's a regular cut it allows me to layer up but still look feminine and form fitting if I decide to wear less layers or by itself. Get it while it's on sale, I'm glad I did!
For reference I am 5'4" 120 lbs and ordered XS
This review was written in the old system and had content requirements that are different than reviews written today.