This is an N-3B flight jacket made by Corinth Manufacturing Co. (コリンス・マニュファクチュアリング). This jacket is a civilian model of the "Arctic Parka," designed for extremely cold environments. Flat measurements: Shoulder width 50cm, Sleeve length 58cm, Chest width 62.5cm, Length (center back from collar to hem) 80cm No major damage. Stains inside the hood. There is a sense of use typical of vintage items.