Economical dual wraparound lens. Optically correct and distortion free. Sleek design allows for a perfect fit for men and women. Weighs less than 1 ounce. Indoor/outdoor mirror lens is a comfortable solution for moving from indoor or shaded locations to direct sunlight and back. Allows approximately 50% visible light transmission and diminishes glare to ease the eye's adjustment from inside to outside applications, reducing eye strain. Meets or exceeds ANSI Z87.1 impact standards. Indoor/outdoor mirror lens. Sold per pair.