Thank you for viewing. I purchased this at an auction, but the neck opening was too tight, so I only wore it once. The neck opening of my other T-shirts is about 18-19 cm, but this one is about 16 cm. The tag says M, but please refer to the size measurements below. This is not official merchandise. Shoulder width / Body width / Sleeve length / Length Shoulder width: 42cm Body width: 49cm Sleeve length: 22cm Length: 60cm