Growing up, we all had a favorite outfit or shirt that was just our trademark. You couldn't really explain it, you just felt like "you" whenever you wore it.
The problem with that favorite piece of clothing is that it eventually got worn out. And as much as you wanted to hang onto it, you knew there was going to come a time, sooner than later, you'd have to retire the ratty thing.
However, some people are more careful than others with their clothing. Or maybe they decided that the record of their favorite t-shirt must live on by making some type of epic statement.