Relaxed Fleece Rugby in Vintage Pewter

I really wish size charts included shoulder width. Especially when paying top dollar, all measuements are really important, and so many high end sites don't include that. So, I guess it's a risk at times. Anyway, I'm 5'9, 165lbs, and thin built. I ordered the large (my mistake), and this was like wearing a tent. So, I thought, let me continue to be a bozo and try M. Still too large. Yet also, it seems like the material is a bit stiff, especially the collar. Just doesn't seem like it might get to that "Mr. Comfy" level.

Not taking the chance on a small.