100% UV PROTECTION: All Costa Del Mar Eyewear lenses block potentially harmful high-energy visible blue light rays and protect against 100% of Ultraviolet rays (up to 400nm).,COSTA 580P POLYCARBONATE LENSES: Costa‚Äö√Ñ√¥s patented 580p polycarbonate lenses are lightweight and impact-resistant. 580 lenses go further then normal polarized lenses by blocking the perfect amount of harsh yellow light and potentially harmful blue light while enhancing beneficial reds, blues and greens.,OPTIMAL USAGE: Costa’s Blue Mirrored lenses are great for harsh sun conditions, being out on open relfective water and boating and fishing in deep water.,METAL FRAMES: Costa’s metal frames are made of marine-grade corrosion-resistant Monel. Monel’s super tough, corrosion-resistant alloy is often used in marine applications. If you are on the water a lot, Monel stands up to the challenge.,VISIT THE COSTA DEL MAR BRAND SHOP: Visit the Costa Del Mar brand shop to view the entire Costa Del Mar eyewear collection.