SG-1 Goggle Lenses Lens Color: Clear allow maximum light transmission without changing the value of colors. The clear choice for indoor shooting, industrial use, medical and dental use, night driving or any activity where protection is the main objective. are made from 2.1mm thick ballistic polycarbonate. 100% U.V. protection, feature scratch resistant coating and anti-fog coated. Wiley X SG1 lenses are die cut and polished to eliminate distortion.