Black Iridium Extremely bright light. Excellent all-purpose lens for sunny conditions. Offers truer color perception. Features an Iridium coating to reduce glare. The latest evolution of a sunglass that shot to 1 when it was first released this rebirth of an Oakley classic puts fresh mojo into retro-meets-Revolutionary. Oakley Twenty brings the sure grip of Unobtainium components to active lifestyles & it takes clarity & comfort along for the ride. Sleek contours of durable O Matter frame material are matched with premium optics to turn sunglasses into a performance essential & a statement of style. If it feels like your sunglasses are wearing you you&8217;re not alone. Lots of people find ordinary sunglasses to be a sinister plot especially with frames that stick out too far at the sides. Oakley Twenty is different because it was engineered with condensed cranial geometry an innovation that doesn&8217;t simply make things smaller &8211; it carefully hones each dimension so the frame feels like it was made for you. Somebody finally got it right. We couldn&8217;t have picked a better design to unleash that kind of engineering. Oakley Twenty tips its hat to an all-time classic & with the sure grip of Unobtainium nosepads &40;in addition to Unobtainium earsocks&41; this new creation is what active lifestyles have been longing for. A base lens curvature of 8.75 achieves a contour that extends peripheral view while optimizing protection at the sides. The stress-resistant frame is comfortably lightweight & integrated dual-cam hinges offer the best in form & function. Match Oakley Twenty with optional HD Polarized lenses & leave harsh glare cowering in humiliation. Optional Iridium lens coatings are available for balanced light transmission that helps you enjoy optimized vision in targeted environments. Whatever options you choose you&8217;ll have the 100% UV filtering of Plutonite lenses with the unbeatable clarity & protection of High Definition Optics &40;HDO&41;. For corrective optics match this frame with Oakley authentic Prescription Lenses. See your eye care professional about the prescription range & premium options. Lens: Polarized lens options. Minimized glare via technology that produces the best polarized lenses on the planet Optimized peripheral vision & side protection of 8.75 base lens curvature Meets optical requirements based on ANSI Z87.1 Meets impact requirements based on ANSI Z80.3UV protection of Plutonite lens material that filters out 100% of UVA / UVB / UVC & harmful blue light up to 400 nm Glare reduction & tuned light transmission of Iridium lens coating &40;optional&41; Available with Oakley prescription lenses Frame: Durability & all-day comfort of lightweight stress-resistant O Matter frame material Comfortable fit on small to medium faces via condensed cranial geometry Precision & durability of sculpturally integrated hinge mechanisms with dual action CAMSComfort & Performance of Three-Point Fit that holds lenses in precise optical alignment Patented Unobtainium earsocks & nosepads ensure a snug secure fit Metal Icon accents