Costa Del Mar Reefton 580G Glass Polarized Sunglasses are inspired by the freshwater fishing from 12 different rivers in New Zealand's Reefton. These Costa Del Mar fishing sunglasses feature polarized lenses to provide 100% UV protection and cut glare; select styles are outfitted with a mirror coating to control glare even further. The lenses are made from 580G LightWAVE glassthe clearest in the industry. They're also scratch-resistant and thinner and lighter than average polarized glass. 580 technology filters out harsh yellow and harmful blue light, making colors brighter and objects sharper. These Costa polarized sunglasses sport durable co-injected nylon frames made using an eco-friendly bio-resin process, complete with rubberized nose pads and temple tips for a secure, comfortable fit. These Costa polarized sunglasses include a case, cleaning cloth, and mfrs. 2-year limited warranty.Manufacturer's style #: 580G. 580G LightWAVE glass lenses the clearest in the industry Polarized technology kills glare Mirror coatings (on select styles) also help control glare 100% UV protection Costa 580 technology eliminates glare from yellow light and boosts red, blue, and green Eco-friendly bio-resin frames with rubberized, nonslip nose pads and temple tips