Design: Premium Polarized 580 Lenses- Filtering reflective glare is essential for anyone on the water or outdoors. We sell only polarized sunglasses The C-Wall coating provides extra scratch-resistance and a barrier that repels water, oil and sweat for easy cleaning. Technology: The lens' multipatented technology manages light by: Absorbing Harmful High-Energy Blue Light (HEV): Enhancing Reds, Greens, and Blues: Filtering Out Harsh Yellow Costas absorb 100% of UV light, providing you the best in light management and protection Additional Details: Regular Fitting: A large lens front designed to fit those with an average-sized head 6 Base Curve - Medium Coverage: Frames with medium-coverage and wrap that value style but still perform