The Whitetip Pro 580G Polarized Sunglasses feature Costa's innovative 580G lenses, which are made with shatterproof glass for a thinner, lighter feel, and are polarized to eliminate glare and mirrored for even better shading when we're out on the boat on dazzlingly bright days. As part of Costa's Pro series, this model boasts a vented and fully adjustable nose pad for a customizable fit, sweat channels and eyewire drains that help keep our vision clear, and side shields, hooding, and sticky Hydrolite material to keep the shades on our face and sweat and sun out of our eyes as we chase deep sea fish. At the end of the day, we wipe off the lenses and toss our sunnies into the included storage bag until the next adventure.