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 580G GLASS LENSES: Costa‚Äö√Ñ√¥s patented 580G glass lenses provide scratch-proof clarity. 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.,CO-INJECTED NYLON FRAMES: Costa’s co-injected nylon frames are tough and durable, manufactured using the environmentally friendly bio-resin process. TR-90 nylon is a premier material for sports and performance frames as it is resistant to heat and cold.,VISIT THE COSTA DEL MAR BRAND SHOP: Visit the Costa Del Mar brand shop to view the entire Costa Del Mar eyewear collection.