Fusing the best-selling Gascan™ and Fuel Cell™ designs to crank evolution up a notch, Crankshaft™ is how streetwise style makes a statement with its own design language. Frame: Durability and all-day comfort of lightweight, stress-resistant O Matter® frame material Comfort and performance of Three-Point Fit that holds lenses in precise optical alignment Metal icon accents Frame suitable for medium to large faces Lenses: 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) HDPolarized™ - Minimized glare via technology that produces the best polarized lenses on the planet (optional) Dual lens polaric ellipsoid geometry (two lenses cut from a single toric shield) Impact protection based upon ANSI Z87.1 test methods for High Mass and High Velocity impact resistance Maximum clarity at all angles of vision with patented XYZ Optics® Available with Oakley prescription lenses UV filter: 100%