Oakley Half Jacket 2.0 Polished Black Frame with Black Iridium Lens. The Half Jacket, a stylish classic sports performance piece. With sticky Unobtanium ear socks & nose pieces the Half Jacket will stick to your head when things get sweaty. We have found that the Half Jacket suits the smaller face as it has a narrower fit. The half rim design makes these ideal for cycling as downward vision is unimpaired with easy to change lenses. Lenses Great everyday lens Neutral contrast 10% light transmission Category 3 Interchangeable lens design to optimize performance in any environment High Definition Optics for clarity, visual fidelity & 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 & 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 Iridium coated lenses that reduce glare & balance light transmission Available with Oakley authentic Prescription Lenses Frames Durability & all-day comfort of lightweight, stress-resistant O Matter® frame material Comfort & performance of Three-Point Fit that holds the lenses in precise optical alignment Unobtainium components that increase grip when you sweat Metal icon accents