I do love my Tenicor Certum and a couple other quality kydex makers, but if I needed to be certain no matter what my gun ain't leaving my side until I want it to at the slight cost of a wee longer draw time, then It's got to be a Kramer horsehide. The screw close straps assure the holster ain't going nowhere either. And If you don't mind that old familiar creak of quality leather, and lack of optic or wml capability, then the Kramer is hard to beat.