The Model 578 GLS Pro-Fit features the unique GLS (Grip Lock System) an innovative technology that automatically secures the weapon when holstered and releases. The holster body is constructed with SafariSeven, a lightweight, state-of-the-art nylon blend is completely non-abrasive to a gun's finish, tolerant of extreme high and low temperatures, and easy to maintain. It includes an injection-molded paddle and an injection-molded belt loop that is adjustable for maximum comfort and allows the holster to be worn cross draw. This model has a black finish and is compatible with: Glock 43; Sprigfield XD-S.