> Chareidi is both Ashkenaz and Sefard.
Sefardi Charedim is an oxymoron. If they are to follow their ancestors, they would be wearing turbans. Instead, they assimilated into wearing black hats out of respect to surrounding community. So, they are Charedim eternally, but in their outlook, they are very modernishe. They would wear turban in a New York minute if they would go back to Suria. Of course, in 2-3 generations, schools will convince them that they were wearing black hats from the time of Esther and Mordechai.
So, Ashkenazi Jews who wear the same clothes as other lawyers around them are as Charedi as those Sephardim. And they would wear top hats when American Presidents will go back to that fashion.