Optic Nerve Eyeque PhotoMatic Sunglass (Shiny Black, Brown) polycarbonate lens 2.5" high 3" wide Photomatic technology provides a single lens performance solution as it automatically adjusts to changing light conditions in 7 to 10 seconds. 100% UV Protection to protect your eyes from harmful UV light. Active Lens Venting to increase air flow and eliminate fogging Style complements narrow faces Limited Lifetime Warranty