Excellence is earned. For Oakley that meant decades of research and innovation before they brought us the special edition Titanium Square Wire Sunglasses. So when we put together the best materials and technologies in the industry designs like this represent quality and craftsmanship of the highest caliber. This optical instrument combines the precision of HIGH DEFINITION OPTICS® (HDOreg;) the comfort of an unbelievably lightweight titanium alloy and the finest polarized lenses ever designed. Optical performance meets the uncompromising standards of ANSI Z87.1 and impact resistance meets all ANSI Z80.3 standards. UV filtering is an unbeatable 100% for every harmful wavelength. A comfortable Three-Point Fit holds the sunglasses in precise optical alignment with supple UNOBTAINIUM® components and custom-engineered spring hinge mechanisms. This premium edition comes with a protective hard case for storage and it includes our finest microfiber lens cleaning cloth. Even with side contours that extend peripheral vision the frame can be fitted with prescription lenses. It can also be used with the optional Bluetooth® module for a hands-free link to your compatible mobile phone.