Like all Costa Del Mar sunnies, the Waterwoman 580G Polarized Sunglasses are never far from our water-bound adventures. These shades are meant for those who love to get out on the water every day, and they have performance-oriented features geared for more active lifestyles. Their polarized lenses deflect all those harsh rays and irritating glare off the water's surface, and they're made of 580G glass for superior clarity, scratch-resistance, and thin lightness. Costa made the frame out of a bio-based resin for an environmentally friendly construction that doesn't harm the beaches you love to relax on. Hydrolite pads cover the nose and temples to ensure a solid grip when things get wet.