I wear Dale Fricke "Zaccheus" AIWB with a suit almost daily. It's very concealable, and I can take my suit coat off with no fear of flashing the gun. The string goes around the button of my pants. While the gun is not locked in a single position, that actually helps adjust as I sit, stand, and move around.
http://dalefrickeholsters.com/produc...lment-holster/