So I've contacted Barbour about my Commander jacket being tight in the armholes and they said they can add triangular patches of fabric to give me more room throughout the armholes & chest. I may end up needing this done, does anyone know what this would look like and if it would ruin the aesthetic of the jacket? Barbour says it would like a stylistic feature but I'm not sure.
As long as they are the same colour/texture as the rest of the jacekt, I doubt it would be noticeable. I have a few shirts with triangular armpit inserts, and it isn't noticeable. In addition, it increases mobility by a lot