Oakley Men's Gascan Polarized Rectangular Sunglasses, SI Multicam Black/Grey, 60mmBrand: Oakley Color: Si Multicam Black Features: OAKLEY HD POLARIZED Improving safety, comfort and performance, Oakley HDPolarized lenses filter out 99% of reflected glare without the haze and optical distortion that can come with polarized lenses made with conventional manufacturing techniques. HIGH DEFINITION OPTICS High Definition Optics (HDO) is a collection of patented technologies that allow Oakley eyewear to meet or exceed the testing standards