"Named for the Hawaiian word for ""sea,"" Costa Del Mar Kailano 580G Glass Polarized Sunglasses are right at home on the water. These Costa Del Mar sunglasses combine 100% UV protection with polarized lenses and classic styling. Polarized lenses feature 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. A gradient tint (on select styles) helps reduce eyestrain. Lightweight, durable acetate frames feature a classic design with a straight top line and a keyhole bridge. These Costa Del Mar polarized sunglasses include a case, a cleaning cloth, and a mfrs. limited 2-year warranty.Manufacturer style #: 6S2013. 580G LightWAVE glass lenses - the clearest in the industry Scratch- and impact-resistant lenses are polarized to kill glare Gradient tint (on select styles) helps reduce eyestrain 100% UVA, B, and C protection Lightweight, durable acetate frames with a straight top line and keyhole bridge"