With its interchangeable lens design, Oakley Commit SQ Sunglasses are a chameleon of performance. Make the most of it with Oakley Commit SQ Iridium Accessory Lenses. You'll be ready for whatever the sun or the competition tries to dish out. All accessory lenses are made with 8.75 base curvature for extended peripheral view and improved side protection against sun, wind and impact. Clarity and impact resistance meet all ANSI Z87.1 standards, thanks to the patented innovations of HIGH DEFINITION OPTICS(R) (HDO(R)). Every single lens is optimized with a permanent coating called Oakley HYDROPHOBIC(TM), a water-repelling barrier that also resists smudges.