Throwing it back to the 1950s with these horned rimmed shades. Delivering style and performance, these Optic Nerve One Sunglasses look great and are priced so you wont lose sleep if you forget them at the beach.. . . . . Polycarbonate lenses meet all ANSI Z80.3 standards for impact resistance. Provide 100% UV protection. Combination nickel alloy and polycarbonate frame. Great retro look. Optic Nerve One sunglasses are certified to meet the California Proposition 65 standards and Consumer Product Safety Improvement Act for zero lead content. Best fit for slightly narrow shaped faces .