What makes the 168 FlatSider XR12 our best-selling off-duty leather holster model for over 20 years? Numerous federal agencies and law enforcement departments around the world provide this holster to their academies, which at first, speaks for itself. But despite its fame, the 168 FlatSider XR12 is everything a pancake holster should be and more. Seriously, once you have this in your hands, you will ask yourself why you bothered with any other gun holster before.