Costa Kare Polarized Sunglasses - Shiny Black/Hibiscus - Located on Auckland's west coast is the isolated black-sand Karekare Beach. The Costa Kare inherit their beauty from the area's unforgettable scenery, and offer thin lightweight construction, optical spring hinges and Hydrolite nose and temple pads for extra comfort. Like many of Costa's sunglasses, Kare is bio-based. And while the beach may be black, the frames are available in multiple colors. Premium Polarized 580 Lenses: Filtering reflective glare is essential for anyone on the water or outdoors. 100% UV Protection: Your Costas absorb 100% of UV light, providing you the best in light management and protection. Scratch Resistant and Durable: The C-Wall coating provides extra scratch-resistance and a barrier that repels water, oil and sweat for easy cleaning.