Serengeti Carlo is a Full Rim frame for Men and Women, which is made of Acetate.Acetate is the most common material used for frame manufacturing. It has endless possibilities for color, texture, and patterns. It can even be laminated to create great visual effects, and it can retain a higher luster. Acetate is lightweight, so it is often chosen for its versatility in coloring as well as for its comfort. Acetate is made out of cotton seed fibers and plasticizers. This model features a Rounded Edges shape, with a Single Bridge.The Serengeti Carlo Sunglasses feature the following logo: Serengeti on temple.These Sunglasses work well for people whose style is: Classic, Stylish Designer, Cool/Trendy.Ideal for usage with: Fashion.Serengeti Carlo Sunglasses come with a cleaning cloth and protective carrying case.These sunglasses are available with polarized lenses on certain colors. Polarized lenses have a filter within the lens that blocks the wavelengths of light that cause glare. They can greatly enhance contrast and allow for greater depth of vision, especially in water. They are ideal for any situation where glare reduction is necessary, like driving or playing sports.These sunglasses are available with photochromic lenses on certain colors, which are light sensitive and adjust to varying light conditions. The color goes from dark in sunny conditions to clear in cloudy or indoors conditions.