The Oakley SI Fuel Cell has lenses that are cut from a single shield of optically pure Plutonite® then placed in the frame to maintain the original continuous contour. HIGH DEFINITION OPTICS®, POLARIC ELLIPSOID™ lens geometry extends clarity all the way to your peripheral view. Exceeds ANSI Z87.1 standards Not marked Z87 rated Plutonite® Lens filters  out 100% of all UVA, UVB, UVC O-Matter™  frame material is lightweight yet highly durable High Definition Optics®  is a collection of patented technologies that allow for optical clarity, visual fidelity, and impact resistance Oakley SI Fuel Cell™ Black/Gray Glasses OO9096-30