Carrera CA1005/S is a Full Rim frame for Men and Women, which is made of Stainless Steel.Hypoallergenic and nickel free, stainless steel is great for active eyeglass wearers because the frames won't lose their shape nor will they corrode or rust when it is exposed to water. This model features an Aviator shape, with a Double Bridge.These Sunglasses work well for people whose style is: Stylish Designer.Ideal for usage with: Fashion.These sunglasses can accommodate prescription lenses. Please call our Customer Service Department to order prescription lenses for this model.Carrera CA1005/S 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.