Like their namesake Chris Fischer, these Costa Fisch 580G Polarized Sunglasses are always up for a challenge. Featuring a nonslip Hydrolite lining and Costas signature three-hole venting system on the front of the nylon frame, these polarized sunglasses keep you cool and comfortable. LightWAVE glass lenses are 20% thinner, 22% lighter and feature 580G technology to block yellow light while boosting red, blue and green for deeper colors and sharper contrast. Costa sunglasses are backed by a manufacturers lifetime warranty. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Polarized.