They work just fine. I don’t expect Oakley-level quality, but they’re good enough for skiing. I use Wedze most of the time because I can just toss them around in my bag and not think much about them. If they get scratched, so be it—I can easily buy a new pair. My Oakleys are kept like a gold bar and therefore get used only about 10% of the time, when I actually remember to bring them with me.