Coach HC7068 is a Full Rim frame for Women, which is made of Metal.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 Square shape, with a Single Bridge.These Sunglasses work well for people whose style is: Stylish Designer, Cool/Trendy, Hipster.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.Coach HC7068 Sunglasses come with a cleaning cloth and protective carrying case.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.