I guess you got it from the tags, but here is one exaple of what I’m referring to.
https://www.pinterest.com/pin/711146597399427982/?d=t&mt=login
so, not the LL Bean image posted above.

Fuzzy slip-ins !

I see; but not my style.

Clearly they are a ridiculously frivolous fashion statement of little (if any) utilitarian value.

Maybe my tag should’ve been “flip flops” instead of “slippers”.
But anyway, flip flops are for hot weather and fur is winter, there is one of the my reasons for my question.

They look like they’re for show. Many of them don’t look like they’ll keep you warm. I used to have big fluffy slippers, but the sole was so thin that my feet froze on the cold floors no matter how much insulation was there on top.

I guess they could be warm on some people’s feet. You were right, though, they’re slippers, not flip flops. I agree with @snowberry, they’re for show. They tried to make excuses for themselves for using real fur by saying: “Please Note that we guarantee all material is from farmed animals, Not wild animals. We protect wild animals.” I won’t go into how they kill animals when they want to use the pelt, but it’s not nice. Sad, disgusting use of an animal.