Military jacket. It's an N3B. I purchased it about 5 years ago from a used clothing store. Please understand that I don't have the receipt. A vest-like lining can be detached with buttons, so it has excellent heat retention. Also, you can adjust the length with the drawstring around the waist, allowing you to wear it in a more modern style by shortening the length! Size ↓ Length (zipper to hem) 50 Length (total) 70 Sleeve length 63 Shoulder width 44 Please understand that these are amateur measurements! I can add more photos and offer a price reduction, so please feel free to ask!