Finally found out that the holster I used that day was also a Desantis, an older two tone "soft tuck" version. Probably look for one of those eventually, it seemed a little bit more comfy when wearing than the CYA I'm using now.
As I guessed, the Sig branded kydex multi-ambi quattro configurable double reversible deceptacon transformer of a holster came out of the bag, was set up for RH IWB carry and worn for about 2 minutes before it went back in the case to lie at rest forevermore.
Anyone want it? Seriously.
Sig says it's "Compatible with all P365, P365X, AND P365XL models with or without a slide-mounted optic and/or external manual safety."
https://www.sigsauer.com/p365-p365x-...y-holster.html
I immediately went out and picked up a CYA IWB with the utilituck clip and wing made for the 365.
I've used them before on larger model Sigs and full size 1911s, and this 365 combo makes it invisible in swim shorts and a t shirt without the need for a belt.
What is everyone else using?