This is a BEAMS PLUS blazer. Size M ■ Design A staple of American traditional wear, the indispensable <BEAMS PLUS> 3-button blazer. With a low gorge line, half lining, and sleeves that are slightly forward-facing, inspired by American sports coats, it's designed to be simple and classic, yet blend naturally into modern wear. ■ Details Basic blazer style with 3 patch pockets, a center hook vent, semi-norfolk lapels, and a three-button stance. ■ Size Based on a 1960s sports coat, the fit has been updated for modern wear. It's a standard pattern that won't be swayed by trends. ■ Care Dry clean only. Please consult a professional cleaner. (For details, please refer to the care label attached to the product.) For reference, I am 176cm tall, weigh 65kg, and wear a size M, which fits me perfectly. Thank you for your consideration.