The PRO Series holster features a built-in magazine pouch or shell loops (revolvers) for convenience and easy accessibility. The PRO series uses a higher denier heavy duty luggage-grade nylon that holds up in the harshest conditions. It also has a very rugged nylon interior that protects the handgun's finish and resists cuts and tears. This holster is compact, lightweight, and features a fully adjustable molded composite thumb break and webbing strap to hold your handgun firmly in place. It also comes with a metal spring clip for use as an in-the-pant holster. Please note: the metal spring clip is only to be used to stabilize the holster by clipping to the belt while the holster is tucked inside the waist band.This may be the last nylon holster you will ever need. The 16 PRO model is shown, but the holster is available in over 40 different sizes. Check the size chart for the holster that best fits your handgun