In my youth (probably about 2001 or so) I had a pair of clear pvc knee high boots that I used to wear with striped tights. I can indeed confirm you get misty condensationy boots from sweating and they don't look good.
In an effort to reduce this I made a little line of holes in them to allow air to circulate. It didn't work.
Now I think about it that might have been a bit of a fashion disaster 