sorry OP I agree with JShirley. If you want to conceal something wear a T-shirt, and some underwear.
Jeez. Did you actually read what John wrote? I can't speak for him, but I think he was saying leadcounsel's "sympathies are obviously unneccessary, pretentious, and boorish."
Let's make this clear:
(1) If I wanted a recommendation for a gun to carry while running or how best to carry a gun while running, I would have posted this in a forum other than the one entitled: "Non-Firearm Weapons" The fact that I DID ask the question here should be a very clear indicator that I do not want a recommendation on carrying a concealed firearm while running.
(2) I'm just spitballing here, but I think that of everyone on this forum that I MAYbe the most qualified to know what I can and cannot conceal while I'm running in my area to be in compliance with our law. Neither a t-shirt nor underwear will conceal a gun when I am running.