The Stealth Operator Inside the Waistband holster is the only holster a multi-gun owner needs. It lets you fit more than 150+ different gun models and is the answer to your bucket of holsters for each one. The proprietary Frame-Lock Technology means that you do not have to take off the holster and adjust it or form it to your next gun. Just holster it and you are ready to go! If you use your holster every day, you'll want to know that the Stealth Operator holster is far more durable than a KYDEX holster. It's made of a flexible material that can withstand higher pressures without cracking and higher temperatures without becoming misshapen.