1791 Gunleather Smooth Concealment Holster, Leather Inside Waistband Holster, Left Hand, Night Sky Black, Fits Glock 17 19 22 23 & S&W MP40/MP9/Shield, Size 4 SCH-4-NSB-L All 1791 Gunleather holsters are all made from the highest quality of Certified American steerhide leather. Leather is a traditional material for American holsters" with an incredibly long and rich history dating back to the mid-1800s days of Wild West frontiersmen. Compared to molded thermoplastic holsters" a leather holster will not warp sitting on a car dash on a hot day. It won't shatter or crack across a point of weakness as it ages. Leather holsters are unrivaled in their comfort. A 1791 Gunleather holster will break-in and stretch slightly" conforming to the contours of your body and becoming more comfortable with wear. The beauty of handcrafted pieces of leather cannot be overstated. They are a statement piece you'll cherish and want to pass down for generations.