Guns & Coffee has a link entitled How to hide a gun in a suit.
Obviously, this assumes one is having a suit tailored. But, the article is in a website that sells suits, not a holster, gun or firearms-related retailer.
So clothing issues are addressed.
If you have the means to afford tailoring, this is good information.
If not, it’s still interesting.
Attn FTC – not getting anything for linking to this article, as if you’d ask…
h/t RTB, Guns & Coffee