This is a rare heavy-weight flannel shirt from FIVE BROTHER (ファイブブラザー), **MADE IN U.S.A. (American-made)**. A must-have for vintage and American casual enthusiasts, it boasts extremely thick and sturdy fabric. It also offers high heat retention, making it perfect for the coming season. The black and white buffalo check pattern, which is not affected by trends, is easy to match with any style and has a presence that makes it the star of the show.