Bulldogs Extreme series holsters have four wall construction. The outer wall fabric is heavyduty waterresistant nylon and the inner wall has a vinyl vapor barrier with deluxe padding and a soft scratchresistant fabric. It has a spine protector to keep gun sights from tearing the inner lining. Extreme series holsters feature an ambidextrous clip and belt loop.This model has a black finish and is compatible with most large frame autos with 3.55" barrels."