This is a shirt worn at the Civil Aviation University. I bought a lot of them when I entered the university. This shirt is in a "I wonder if I ever wore it?" condition. Short-sleeved shirts are needed in large quantities for changing, so how about this one? I have one other short-sleeved shirt. This one has been worn, but it's still wearable. It can be purchased for 1000 yen with the other shirt. Please let me know in the comments. I think it's a size M, but please refer to the measurements below: Width (underarm to underarm): 53 cm Length: 77 cm Shoulder width (straight line from shoulder seam to shoulder seam): 45 cm Thank you.