Named after the birthplace of Bluefin tuna fishing and hideout spot of Blackbeard the pirate, the Costa Del Mar® Cat Cay 580G Polarized Sunglasses are a rough and tough tool used by angler’s that are looking for the best performing fishing sunglasses. These shades are packed with innovation such as the patented vented system that prevents your glasses from getting foggy, so you always have great optical clarity when you need it the most. The glass polarized lenses provide UV protection while also fitering out glare and reducing eye strain when you look down into the sparkling waters. Make your own watery legend when you gear up in the Cat Cay 580G Polarized Sunglasses.