The Valken mi-3 has a polycarbonate lens have an anti-fog & anti-scratch coating, so your field of view won't be impaired in adverse weather conditions or compromised due to rough terrain. The goggle system is impact resistant to paintball & airsoft gun fire up to 300 fps.
Tactical goggle system
Dual polycarbonate lens
Thermo-cured anti-fog & anti scratch coating
Meets ASTM standards for safety glasses