Barbour International "Duke" jacket fitting question:
I'm torn between size Small and Medium. I'm 5'7" athletic built (lift weights). Small looks better (slim fit) but feels very snug around the shoulders and chest areas to the point of slight restriction of my arm movement. Medium is more comfortable (regular fit) but has too much billowing to my liking. I plan to just wear a T-shirt under it (mild SoCal weather). Which is the way to go? Thanks!