What To Wear For Sorority Presents As An Alumna Of A Sorority, Is It Appropriate To Wear My Greek Letters In The Professional Workplace?

As an alumna of a sorority, is it appropriate to wear my Greek letters in the professional workplace? - what to wear for sorority presents

I coined only so many shirts with the letters on my fraternity, I want to wear them at work, but I'm not sure how people react. I just want to know whether most companies have a general approach on this issue. Some companies do not want anything that has to bear a logo - I know that's not my business that way, but I wonder if my membership would show in a single organization, may constitute a breach of an unwritten rule of political correctness.