I bought a Glock 42 for pocket carry options. However, I wanted to shoot it in IDPA which meant a belt holster. Being left handed it was hard to find a good one when the gun first came out. I had so-so thin, material one. Didn't like it. I did find a Blade Tech Total Eclipse Double Mag pouch - kydex and it was pretty good for two mags.
I asked here and someone recommended JM - and I ordered a Road Dog model for left handers. Came the other day and it is very nice. Fits the gun well and on my dress gun belt. Since my old back has been complaining about the full rig of a 9mm Glock and two mags, I decided the G42 set up would go out for EDC time. Very comfortable and concealable under a floppy shirt with the Eclipse on the other side. Back didn't protest.
I note that I am usually in the fanatic camp of a big ol semi and two mags as you never know when ...
However, it's gotten me through a hike on our town paths and a big old French toast breakfast in a nice cafe where old folks do brunch.
Nice holster!