Love these! I used these on a whiteout day on Mt Hood, and they didn't fog up at all; pretty amazing considering it was blizzarding, and part of the time my face mask was tucked under the goggles. I was a little worried about the magnets not being strong enough, but the lens didn't fall off the goggles at all, and I took a number of tumbles. I wish the night lenses were a little more for actual night skiing rather than for clouds, but I haven't actually used them yet, so maybe they just seem darSee full review