Oakley Chainlink is an active lifestyle sunglass for those who play hard and want original style for life beyond sports. O Matter frame material is stress resistant and lightweight for all day comfort and Three point fit holds lenses in precise optical alignment. Polarized Iridium 6-base curve Plutonite lenses filter out 100% UV(ABC), eliminate glare, and maintain clarity at all angles of vision with patented XYZ optics.Metal icon accents.HDPolarized lenses eliminate glare.Iridium lens coatings provide glare reduction and tuned light transmission.Fits Medium to Large faces.