I have a Crossbreed IWB holster for my Kahr PM9. It's flat out awesome. I don't have to wear a belt to carry. It looks huge, but when you put it on you don't even know it's there.
I have the supertuck IWB for my 9mm Smith and Wesson M&P compact. Functionally, it is AWESOME, but it is not very pretty. I have carried mine with shorts and a t shirt, or with a full suit and tie. VERY awesome holster. You should get one.