For our off the rack jackets (the ones that are on sale), it's generally chest size + 2 or 3 inches. They tend to run a bit snug.

You'll also need to know if you're short, regular or long. If you need to know the sleeve length, I can tell you that as well (once you give me the jacket chest size).

Here's the prper way to measure for a jacket***:

http://www.usakilts.com/store/jacketmeasure.php

Hope that helps!


*** this is the proper way to measure for a MTM jacket from OUR Store. Other companies may use different measuring instructions.