This is an N-3B type flight jacket for the general public. Although it doesn't meet military specifications, it's likely a civilian model from the late 70s to the 80s. - The front zipper is a sturdy old zipper, and the left sleeve pocket has a zipper with a ball chain. - The inside is orange, providing high warmth and practicality. - It has a drawcord inside, allowing you to cinch the waist and adjust the silhouette. It's still very usable as it gets colder from here on out! Feel free to comment if you have any questions! Price negotiations are welcome!