I have made reference to this holster elsewhere, but thought it deserved a separate thread.
Over the past few years, Tony at JM and I have been back and forth on an evolving design for an appendix holster that works for a range of pistols, from large to small, for folks with a lean body style. Tony got tired of reciting the specs, and decided the holster needed a name. I suggested Tony call it "the Bolke," but he is the boss there, and named it "the George."
http://www.jmcustomkydex.com/p/GEORGE.html
So what is the George? It is a kydex AIWB holster made of .93 kydex, with two sets of holes in the body of the holster to allow fine tuning the ride height (lower conceals better, higher presents faster). It uses a minimal wedge that allows a quick, full firing grip while still tucking the butt of the pistol. The sweat guard/body shield comes in low, medium and high heights. Extra tuck is recommended by Tony for longer barrel pistols, but I prefer not to have it, as I find it more comfortable without the extra tuck, as the extra tuck rubs the top of my pelvis. I have been using a split belt loop of slightly taller height, although I am now experimenting with Tony's soft loops. The soft loops show promise, as they allow a slightly trimmer holster, and I have found the kydex loops to sometimes print more than the rest of the holster. I also like the comfort pad option that Tony recently introduced. I have used this design, with complete satisfaction, for pistols as small as the 3913 and P2000SK up through the Beretta 92G-SD.
To summarize, my current version of the George is green, 1.5 soft loops, medium sweat guard, .93 kydex with two sets of holes, the comfort liner but no tuck -- although Tony will build it how ever you like! Here is a recent care package from Tony, with the latest versions of the George for a P2000, Glock 19, Beretta 92G-SD, S&W 3913, S&W 1066 and, for good measure, an OWB for a Beretta Centurion.
After complaining to Tony about not having a good pocket holster for the Glock 42, Tony recently built up this design for me, that I am thrilled with. I believe he is just putting it up on his website. While it looks big, it carries the 42 perfectly, and allows for a fumble free draw like you might expect with a J frame.