I heard from a few people that some of the hats that Hassidim wear such as shtreimelach and spodeks mimic the hat styles worn by previous kings and czars. Perhaps, I heard incorrectly, so feel free to provide correct info on where these styles came from.
If it is correct, I am curious as to why they allowed imitating these styles? Two reasons to this question: Isn't this a form of "chukot hagoyim"? Why would they want to mimic the dress style of kings, czars or other leaders that harmed Jews?