Well im a 39/40 chest hence going for the L it then arrived and shall we say it was a liitle more fitted than id like. Rang Always Riding up where I got it from, and the guy stated that they were close fitting and if I wanted a looser cut I should go XL.
Anyway that came and was better but was still very fitted. I kept it but quite sure a XXL would have been a better fit still.
Purchased a Gore L jersey and the fits perfect.
Perhaps call them up and ask there view on it.
The jersey I had was the Argyle sold it over on classifieds last week.