I just love Kydex for IWB carry. It doesn't collapse, it doesn't absorb sweat, it doesn't smell, and the retention is outstanding. One of the things about Kydex is that it is VERY gun specific. Unless you are handy with a heat gun, don't buy a holster intended for one gun and try to use it with another. Cal Barnlund (you can contact him at
[email protected]) is a dealer for several different brands (BladeTech, Holsters Plus, TacPro, Tactical Tools) and he likely has a 1911 holster in stock that will fit your needs.
-sarah