Gascan Sunglasses are so unique Oakley has to customize their own logo to fit the design. Cut from the curve of a single lens shield to maintain the original, continuous contour, the overall shaping boasts the ultimate in modern style, with High Definition Optics(R) partnering with XYZ Optics(R) to push the limits of clarity. The O-Matter(TM) frame material provides lightweight comfort without sacrificing durability when you need it most. Cut from the curve of a single lens shield to maintain the original, continuous contour High Definition Optics(R) (HDO(R)), a group of technologies, helps meet or exceed standards for optical clarity, visual fidelity, and impact resistance Patented XYZ Optics(R) geometry prevents distortion and provides razor-sharp clarity at every angle O-Matter(TM) stress-resistant frame material improves durability without sacrificing comfort Standard fit