Blackjack Safety Glasses Clear Lens meet ANSI Z87.1+ safety standard for most industrial work applications. Crews Blackjack's sleek, stylish single wraparound lens has integral sideshields for extra eye protection. The built-in side guards add that additional security from debris and other objects. Crews Blackjack spectacles have durable temples with nonslip rubber head grips for a comfortable and unbeatable fit. Additionally, the temples are made from a durable metal alloy that does not add any extra weight. Strong yet lightweight polycarbonate lens with exclusive Duramass scratch-resistant coating. Regardless of the lens tint you chose, they all will filter out 99.9% of UV radiation.