This is a short-sleeved shirt from the department store brand Royal Crew. I believe the neck circumference is 41cm. The sizes are: Length...approximately 77cm Width...approximately 57cm Shoulder width...approximately 46cm Sleeve length...approximately 25cm (There is no size tag, but I believe it is likely an M size.) The light blue stripes give it a cool look. I am open to price negotiations for those considering purchasing. Please be aware of folding creases.