The B-15 is a classic flight jacket made tough to battle the harsh elements. Features a nylon shell and removable synthetic mouton fur collar. The Alpha B-15 features button tabs once used by pilots to connect oxygen masks and headset wires. Comes in Black, Sage and Navy (please note that the original color 'Navy' ordered by the U.S. Military has more of a teal shade to it...rather than the darker 'navy blue' traditional jackets are known for). This jacket has more room in the stomach area so if you like a tight fit order down a size.