Named after the greatest fisheries in the world, Zane Grey Reef, the Costa Del Mar® Zane 580G Polarized Sunglasses are always ready for a deep sea adventure. These shades are built with co-molded Hydrolite™ temples for added comfort and 100% polarized lenses that block out UV rays and unwanted glare. Glass lenses offer razor sharp vision and are scratch-resistant so you can see clearly as you sail along in the sun.