Are jersey sizes basically the same as suit jacket sizes?
Basically, the number is the chest measurement, but generally I end up wishing I could find a jersey two sizes smaller than my suits as I think mlb jerseys run a bit large. Granted there aren't generally enough sizes available for sale to make that practical in my case but might help you if you fall in between the standard sizes. Regardless I would try one on before buying unless you are talking these $25 ones.
