This is an open-collar shirt from Ralph Lauren. Rare, as it has no pony mark. The pattern is black and white, making it easy to match, and the material is linen. You often see large sizes like L, XL, and XXL in this type of open-collar shirt, but this one is a size M. S and M sizes are hard to find. The condition is also very clean. Originally, the shirts are made quite large, so S and M sizes are likely the most in-demand sizes for Japanese people. Please consider the actual measurements below. Shoulder width: Approximately 49cm Body width: Approximately 58cm Length: Approximately 74cm Sleeve length: Approximately 24.5cm RRL Open collar Vintage Vintage