This is a NIKE product. I wore this about 15 years ago. It has a small NIKE logo that's no longer used, which is cute. I really liked it, so I took good care of it, and I think the condition is not bad. I inspected it carefully, but it's a personal inspection, so please refrain from purchasing if you are sensitive to details. The size is M, but it feels like a size S. Shoulder width: 33.5cm Body width: 44.5cm Length: 57.5cm Sleeve length: 12.5cm Track and field, marathon, jogging, training, vintage, used clothing