This model is constructed of the innovative SafariSeven™ material, a unique nylon blend from DuPont™. SafariSeven™ is highly durable and practically impervious to the elements. This holster features ALS® Automatic Locking System design for secure weapon retention. With an instinctive drawing motion, once the weapon is holstered, it locks firmly into place. Upon a proper shooting grip, the ALS device is de-activated by the thumb and the holster is released with a simple straight up draw.