People could have wording on their shirts to describe who they are as a person. Some shirts could say "Beautiful" or "Caring" or "Easy going." Whether they are accurate or not is up to them.
That's nice. When I was in Copenhagen last year I got a University of Copenhagen Sweatshirt because they were cheaper and better quality than the sweat shirts in souvenir shops. I has been suggested that I add the words, "Smart Person" on the back.