With a large fit in a classic design, the Costa Del Mar Cut Polarized Sunglasses slice away the sun's harmful rays and glares so you can enjoy the sunny days in stylish comfort. Costa 400 polarized glass lenses block harmful UV rays as well as harsh glares so your eyes stay happy and healthy in the sunlight. The glass lenses are also 20% thinner and 22% lighter than standard glass polarized lenses, and they resist scratches so you can enjoy these sunnies for many years of fun under the sun. Costa Del Mar made the frame out of co injected nylon for durability, and the stainless steel spring hinges won't corrode if you decide to take a dip. The six base lens curve means these shades wrap around your face a little not as much as sport style, but more than flat lifestyle sunglasses. An included hard case helps with safe travel.