Lightweight, Stress-Resistant O Matter® Frame Material Three-Point Fit that Holds the Lenses in Precise Optical Alignment Unobtainium Components that Increase Grip when you Sweat Metal Icon Accents Interchangeable Lens Design to Optimize Performance in any Environment High Definition Optics for Clarity, Visual Fidelity and Impact Resistance that meets all ANSI Z87.1 Standards XYZ Optics to Extend Clarity to the Edge of a Wide Peripheral View 8.75 Base Lens Curvature that Improves Side Protection Against Sun, Wind and Impact UV Protection of Plutonite Lens Material that Filters out 100% of UVA / UVB / UVC & Harmful Blue Light up to 400nm Semi-Rimless Design for Open Downward View Polarized Options–Minimized Glare via Technology that Produces the Best Polarized Lenses on the Planet Transitions® SOLFX™ Photochromic Lenses Options: Darkens and lightens the lens in response to the Environment Iridium Coated Lenses that Reduce Glare and Balance Light Transmission Available with Oakley Authentic Prescription Lenses