That being said if a suit jacket doesn’t totally fit in this area, it doesn’t mean don’t wear it. Women don’t really need to button up a jacket like men do. If it’s a little small, no more than a 2 inch gap in this area, and every other place fits well, then wear the jacket. The most important fit on a jacket is at the shoulders, shoulder blades and bust. If you have an “O” Body Shape or an “H” with a belly you can wear a jacket this way. Just remember no more than a 2 inch gap.