We have tested this at our field with many players, this is an outstanding anti-fog spray!
This is also: Anti-Bacterial, Kills Germs and Protects Lenses.
Nurpol Clear View is a specifically formulated anti-fog spray for use with different types of lenses. Once applied it will leave a thin film of protection over the lens, stopping condensation from fogging up your lens. Nuprol Clear View is also an anti-bacteria spray that kills germs and maintains a clean surface.