Inspired by our popular Crosslink™ Rx frame Chainlink™ is an active lifestyle sunglass for those who play hard and want original style for life beyond sports.Frame:Comfort and Performance of Three-Point Fit that holds lenses in precise optical alignment Durability and all-day comfort of lightweight stress-resistant O Matter® frame material Unobtainium® earsocks and nosepads for added comfort and practical performance Frame suitable for medium to large faces Metal icon accentsLenses: Fire Iridium Medium to bright light. Improves visual acuity. Ideal for sunny conditions. HDPolarized™ – Minimized glare via technology that produces the best polarized lenses on the planet (optional) UV protection of Plutonite® lens that filters out 100% of UVA / UVB / UVC & harmful blue light up to 400nm Glare reduction and tuned light transmission of Iridium® lens coating (optional) Optimized peripheral vision of 6 base lens curvature Optimal precision and impact resistance that meet or exceed ANSI Z80.3 optical and basic impact standards Maximum clarity at all angles of vision with patented XYZ Optics®