I had a pair of waterproof, thinsulate Kamik ankle boots. They were great for Canadian winters and classy enough you could wear them anywhere, wore them for about two years. But then during COVID I left them in storage and when I took them out two years later the soles disintegrated :/. Not the fault of Kamik, I learned that the rubber needs to be used or it falls apart. I think if it weren't for the storage they would have lasted a while, they were still going strong and winter is harsh up there.

I'm on my second pair of kamiks in 10 years. I love them and one of the only women's boots that actually had the cold rating right on the tag. Mine are good to -40°f so when paired with a decent pair of wool socks work great for MN winters.