Oakley Standard Issue Sliver Stealth - The sleek look of Sliver eyewear is now available with enhanced side-to-side curvature, and a new fit, making it perfect fit for small to medium faces. Lightweight O Matter frame equipped with Unobtainium increases grip and Three-Point Fit precisely holds the lens in place for optical alignment. HDO Optics with Plutonite lens technology provides optical clarity while blocking 100% of UVA and UVB protection Prizm lenses enhance color, contrast and detail for an optimized experience HDPolarized lenses and Iridium lens coating both reduce glare and light transmission