The material of the fabric is unknown because the tag has become thin and unreadable. The size is probably M, but the tag is also too thin to read. I apologize. I purchased this at the now-closed Barneys New York Shinjuku store. There is a stain on the upper right part of the back. There are also many wrinkles. Width: Approximately 46 cm, Shoulder width: Approximately 37 cm, Length: Approximately 57 cm, Sleeve length: Approximately 35 cm - Brand: BARNEYS NEW YORK - Color: White - Style: Three-quarter to seven-eighths sleeves - Design: Button-up