I bought the medium, 5'5" 150 lbs, and it fits perfectly. The button and crossover piece are lovely and add to the vibe. It is very comfortable and classy LOVE IT!
This broach is so very well-made. And it can be worn as a necklace or else as a broach. Also I was pleased with the pretty paper-mache box that it came in! I will use the box again.