What such a hat looks like:

https://commons.wikimedia.org/wiki/File:Black_beaver_hat_-_D...

It's funny to me, a Canadian, that this even warrants a did-you-know article because everything about the beaver fur/hat making industry is something I learned extensively about in elementary and high school because it was like, a major driver of the European exploration and colonization and therefore significant to the history of my country.

But outside of here it's just a footnote to a fashion trend.