It was about -48C (-54F) about a month ago...I had pairs on my 93 and 00 Tacos. They are ok, They keep the weather out best if you just crack the window. They do create a little wind noise, mainly noticeable with the window open. I thought they looked cool when I was younger, less fond of them now. If you live anywhere cold youll probably break a few sets over the years. Options after that are replacement or hours of removing the 3m film.