If you are looking for an IWB Holster, forget it the gun is just too darn big to carry IWB, When I tried it dragged by pants down, of course mine is and ST with the rail which is heavier than the standard P220, but If I can't dissuade you look at a Milt Sparks VMII its the cadillac of IWB holsters. Top gun supply is a good place to go for one and they usually stock them, expect to pay $125 for the Sparks VMII. I had one for the P220st and sold it, I also have one for my 1911 Officers ACP and it works great. I tried a Desantis executive companion shoulder holster and it is great for the 220. But the Best Holster I have found for my P220st is the Blackhawk Serpa, its a paddle, but very secure and it has the serpa lock, it will run ya $60 and IMHO its the best choice for a P220St.