Here's my latest holster. It's for my winter carry
Smith & Wesson 469. I followed the same pattern as my
AIWB I did for my Sig P239 with a couple improvements.

I thickened the rear section that supports the grip end and widened both J-hooks to improve on durability. I maintained the curve to the clips I used on the Sig holster which helps with allowing the holster to bend with my waistline. The holster is easy on/off and is surprisingly comfortable. It holds the gun securely until I need to draw it which it does quickly.
The Smith & Wesson 469 is a double stack so it's not a thin gun. With a t-shirt draped over it's still noticeable that there's a lump, but it could easily pass for a cell phone and in no way looks like a gun. Here's a short little video I made that shows how easily it comes on and off and how it conceals.
YouTube - AIWB Kydex Holster for a Smith & Wesson 469
If you want to enlarge these pictures or see other pictures go to my blog:
Hidden Defense
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Mine: S&W 908.....Wife's: Ruger SP101 3"
------Kahr PM9...............Sig P239 (it's her's now)
------Norinco 213...........Charter Arms Undercover
Hidden Defense - Personal gun & holster designs/reviews.