Details item# 257748 Oakley Turbine sunglasses. Turbine cranks up the active look with interchangeable icons plus inset zones of sure-grip Unobtainium. Along with clean lines of comfortably lightweight O Matter and a lens shape inspired by our popular Hijinx sunglass, its durability and performance would make a sport frame jealous.The lenses are cut from a single curved toric surface then fitted into the frame to maintain the original contour, an achievement made possible by Polaric Ellipsoid geometry that maintains precise visual clarity along curves that open up peripheral vision. This self-assured look has a touch of active styling and the all-day comfort of a Three-Point Fit, an Oakley innovation that ditches the uneven pressure points of conventional frames. Grey lenses. Made in USA.California Residents: Proposition 65 Warning