The Square Whisker utilizes the same C-5 alloy that made Oakley's original design so unbelievably comfortable and durable. This latest creation is a thin frame thats big on style, thanks to digital sculpturing along its sleek temples. This pair of sunglasses was engineered with tuned flexibility so the fit can adapt to your head while maintaining just the right amount of subtle pressure. Unobtainium on the stems increases grip with perspiration to keep the frame securely in place. Its part of the Three-Point Fit, a way to maximize comfort by ensuring the frame makes contact only at the bridge of the nose and the sides of the head. The combination of C-5 alloy and durable Plutonite lens material meets all ANSI Z80.3 impact protection standards. This eyewear also meets ANSI Z80.3 standards for optical performance, and the clarity extends across the entire lens surface. The American National Standards Institute (ANSI) uses just a small area of the lens for testing the zone directly in front of the eye but thanks to XYZ OPTICS, Oakley can extend clarity all the way to the lens periphery. Thats a major achievement, considering the 8.75-base lens curvature that improves protection against sun, wind and side impact.