FWIW:
Regarding the FIST Kydex as mentioned by "matheath".. I'm a big fan of these iwb holsters, and have one for my P7 & J frame Smith.
The FIST Kydex is extremely thin, and fits my P7 perfectly. The only complaint I have about using a Kydex with my P7 is concern for slide wear, as when you insert and withdraw the P7 it IS a tight (by design) fit. I'd be the first to admit the FIST isn't the prettiest girl at the prom, but it does the job perfectly.
I originally was not concerned about potential for slide wear because it was my intention to have my P7 hardchromed by Tripp, (yeah, I know he's not doing that any longer), but I was so pleased with the overall condition of the "A" grade (CDNN) HK P7 that I just don't want to have it refinished.. Later on if slide wear becomes a concern I will have it refinished by Fords.
I consider the FIST holsters as excellent as regards fit and function, and FIST does make a leather version of any of their Kydex holsters, so I'm thinking about ordering another FIST iwb for the P7 like the one pictured, but in leather.
Just another option.
Best Wishes,
Jesse
P.S. I read one post on a firearms forum where a customer bought an "A" grade HK P7 from CDNN and was very unhappy with the condition of the pistol he received.. The pictures with the post made me agree with that person, but of the three I bought from CDNN (separate transactions) two were "like new/exc." one was "NIB". I told my buddy about these CDNN P7's and he ordered one too, ("A" grade) and he said his pistol came NIB also.
I am a big fan of CDNN and would recommend them without reservation.