The MTAC Spare Kydex bodies are a rigid material that are fit to each firearm and maintains their shape even with the pistol un-holstered. The smooth low friction surface allows for a fast draw and easy one-handed re-holstering of the firearm. The Kydex body will not bend or stretch over time and is impervious to sweat and solvents.MTAC Spare Kydex Body Holster - Smith + Wesson M+P 4.5 9mm/.40 S+W/.45 ACP Slide - Right Side Carry - Black