The 1791 Ultra Custom Holster's Memory-Lok technology allows for a customized fit with Kydex like retention with the comfort of leather. The patent-pending process allows you to customize your holster to your firearm, multiple times, using a simple three step process. The Ultra Custom is made from ultra-soft cowhide and designed with a high sweat guard that provides a layer of protection between you and the firearm. This holster provides users with a reinforced synthetic tuckable clip for IWB carry, which provides a slim profile for superior concealment. The Ultra Custom Holster is available in six sizes that accommodate everything from revolvers to full frame firearms. Once you receive, follow the instructions and mold the Memory-Lok Leather to a full custom fit for your firearm. You can't get any more custom than that!