ALS (Automatic Locking System) secures weapon once holstered. Simple straight up draw once release is deactivated. Open-top design without SLS for quick retrieval of weapon. Constructed of SafariSeven, a proprietary nylon blend that is completely non-abrasive to a firearm's finish. It comes standard with the 567BL belt loop, for 1.5 in. (38 mm) to 1.75 in. (45 mm) belt widths.