Tailor Vintage Checked Shirt

100 % cotton in red and white checks. Collar and cuffs lined with floral. Button down collar and cuffs. There's a light spot above the left pocket, I'm not sure is the shirt was born that way or not. Size L measures 50 under arm, chest. 50 at bottom hem. Sleeves 21. 30 from shoulders to curved bottom. Crisp and clean.