I've owned a Garrett Industries Silent Thunder STX for maybe 5 years. It was advertised as a "kydex/leather J frame holster" in the forum classifieds and neither the seller nor I knew exactly what it was at the time (it's unmarked). I think I paid $25 and it took me a bit of google searching to identify the manufacturer.
I usually pocket carry a J frame, but this is now my holster of choice when I want one on my belt. I'm not a big fan of kydex, but the Silent Thunder STX is extremely well designed and does everything I could ask. The leather lining and adjustment screws provide excellent retention and the holster hugs tight to the body. The leather loops are adjustable to fit different size belts and the snaps make it easy to put on and take off.
The MSRP is $125. That may seem high for a kydex holster, but comparing these to a typical kydex holster is apples and oranges. Some of the components are available as replacement parts, but I doubt they'll be needed.