Optic Nerve Hell Camino PhotoMatic Sunglass 100% Nylon nylon frame 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 Polycarbonate Lens Resin and TR90 Nylon frame construction for lightweight and durability Limited Lifetime Warranty