I had originally purchased in a Medium and exchanged for a Small. The Medium fit huge especially in the shoulders. The Small def fits better in the shoulders but is slim. I can only wear a button down underneath it. Thinking this jacket might not work for me. If anybody wants a brand new with tags size Small holler at me before I send back.
Out of interest, how were you planning on wearing as this was exactly how I see myself wearing it? It's really lightweight and I thought it would be great for throwing on over a shirt or a T. Maybe use it as a layering piece in the autumn or spring.