Magpul Industries, Explorer Eyewear, Polarized, Black Frame, Bronze Lens/Gold Mirror Rugged and reliable Casual style includes a more relaxed wrap & flexibility at the temples for all-day wear Outstanding impact resistance, even at low temperatures Chemical and stress-crack resistant UV resistant Lenses provide high velocity impact protection Frames are constructed of TR90NZZ Anti-reflective coating on inside of lenses Frames and lenses suited for medium-sized faces The Explorer is a casual design that incorporates high performance features for those times when you want both protection and classic style out of your eyewear. With the same lens and frame construction and materials as Magpul's ballistic-rated models, the Explorer provides extreme impact resistance, durability, and flexibility in a more lightweight package you can wear everywhere.