Good luck sir. I initially wore Level IIA vests. In a hot climate, still pretty miserable in the summer. If concealability was the main criteria, I guess I'd go with the IIA. I did some informal testing with a few common handgun calibers. None penetrated the IIA vest. I did later wear a IIIA vest for over a decade, but only after I moved to a slightly cooler climate. Not so concealable, and still miserable in the summertime IMHO....