Silhouette TMA Ultra Thin 8147 is a Full Rim frame for Men and Women, which is made of Titanium.Titanium is one of the lightest and most durable materials. Its superior tensile strength and corrosion resistance make it a smart investment. It is hypoallergenic, so it comfortable as well. This model features a Square shape, with a Single Bridge.These Sunglasses work well for people whose style is: Classic, Stylish Designer.Ideal for usage with: Fashion.Silhouette TMA Ultra Thin 8147 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.