Safariland 7390 7TS ALS/SLS Mid-Ride Level-III Retention Duty H&K VP9 Holster Level I Retention holster featuring the alps (automatic locking System) which secures weapon once Holstered A proprietary Nylon blend (safari seven) that is completely non-abrasive to a firearm's finish Mid-ride level Open-top design without sls for quick retrieval of weapon 2.25 inch (58mm) belt slots