Challenge glasses are designed for shooters. Available in 4 different colors with an adjustable nose pad. UV 400 protection. Available in: Yellow: For dim light conditions or fogIncreases brightnessEnhances the color of the targetPurple: Reduces any green background colorGives true depth to the backgroundEnhances orange targetsOrange: For very bright conditionsEnhances orange targetsEnhances bright colorsNeutral: For all light conditions without creating contrast Beretta Challenge EVO Glasses w/Yellow Lens OC061A28540229UNI in No Frame