Unique Designed "Ivy League Professor" look Oxford style Dress Shirt - Vintage 90's Tommy Hilfiger - Long Sleeve/Button Down - Size on tag shows M/M - Men's Medium - Really nice, soft, higher quality shirt - Looked over entire shirt - no flaws seen or noticed - Listing Size as listed on Manufacturers Tag - M/M - I do not Measure - Not responsible far varying fit sizes from manufacturer to manufacturer.