Why is it the Pope wears the clothes that he does?

I’m sure it all traces back to the days of Rome and the beginning of the Catholic church and there are reasons for it all. I’m just wondering why does he still wear it?

Culture is an interesting beast, especially when it comes to clothes and appeariance. This is a huge topic for me, but I never mention it. I’m really interested in why society dresses the way it does. Yes, I understand Fads and Trends, Marketing strategy and all those things have a huge affect on the way we see things. But, if you push all that crap aside what is left?