Hmm, well I sweat a lot I mean after a 15 min game, my mask is literally dripping with sweat .Forehead protection is ok, all the lenses I have for sale are dual pane thermal ones.
I have used i3s a bit and not had any fogging problems, the main problem is how much beer I sweat out from the night before that causes misting up!
So, not really sure if these are suitable, if they mist up after the beer