This product has the following fits: - Springfield XD-S 3.3in. & 4in. .45 - Springfield XD-S 3.3in. & 4in. 9mm & .40 - The Evolution Series is a passive retention holster that includes a retention adjustment screw. The tension screw is not pre-set and allows for retention pressure to be adjusted based upon personal preference. When un-holstering do so in a deliberate and rapid upward motion. Passive retention is automatically engaged upon re-holstering. - The next step in the evolution of holster design. One piece holster body construction with adjustable retention screw allows the user to customize the holster retention pressure. - Passive retention one-piece holster body construction - Retention adjustment screw with passive retention - Protected sight channel - Low profile design for concealability - Rubberized paddle backing for extra stability and comfort - Reinforced rivet attachment