Carrera CA6011/S is a Full Rim frame for Men, which is made of Optyl Plastic Front and Metal Temples.Optyl is a thermoset plastic material, which is not only hypoallergenic but is also treated to a special surface coating which makes it resistant to sweat and cosmetics -- Most metal frames are made out of Monel. Monel has a copper and nickel base. This metal can be corrosion resistant, strong, and easily adjusted. It retains its stability and shape This model features a Rectangular shape, with a Single Bridge.These Sunglasses work well for people whose style is: Classic.Ideal for usage with: Fashion, Everyday Driving.These sunglasses can accommodate prescription lenses. Please call our Customer Service Department to order prescription lenses for this model.Carrera CA6011/S Sunglasses come with a cleaning cloth and protective carrying case.These sunglasses are available with a mirror coating option on certain colors. Mirror coatings are suitable for protection from intense light. A mirror coating reflects back light and reduces the amount of light passing through the lens. This makes it more comfortable for eyes in very sunny conditions.The sunglasses are available on certain colors with gradient tinted lenses - Gradient tints are tints that start off at a darker color at the top of a lens and then gradually lighten towards the bottom of the lenses. These tints are great for fashion and for reading outside on sunny days. Gradient coatings work by allowing an appropriate amount of light to filter through in certain areas and less in places where protection is most necessary.