Oakley Men's MPH Pit Bull Sunglasses Grey Smoke with Black Iridium Lens composite frame composite lens polarized Lens width: 60mm Optical precision and performance Precision and durability of sculpturally integrated hinge mechanisms Comfort and Performance of Three-Point Fit that holds lenses in precise optical alignment UV protection lens material that filters out 100% of UVA/ UVB/ UVC & harmful blue light up to 400nm Glare reduction and tuned light transmission of Iridium lens coating