I bought some new goggles about a year ago. First of all they were excellent. I could swim for lengths and lengths without them misting up.
Now though, they get foggy within 25m.
I dry them with a quick dry towel after I have used them. I need to dry them as if not, I can’t see through them as the water leaves a mark on them. i’m wondering if I have wiped off some sort of finish on them?
any ideas how I can make them mist-free again?
Thank you.