Rugged Maui Jim sunglasses feature light-weight frame materials blended with Maui Jim's patented PolarizedPlus® lenses to produce a durable sunglasses line cool enough for daily wear. Maui Jim was awarded the Seal of Recommendation from the American Skin Cancer Foundation for having the highest amount of UV Protection on the market. Maui Jim Byron Bay-746 is a Full Rim frame for Men and Women, which is made of Nylon.Nylon is a thermoplastic material that is blended in order to counteract its initial brittleness. Nylon blends are lightweight, stable, and resistant to breakage. Nylon has less of a tendency to "bleed" it's plasticizers resulting in great hypoallergenic properties. It can be blended with polyamides,grilamid, or trogamid. This model features a Rectangular shape, with a Saddle Bridge.The Maui Jim Byron Bay-746 Sunglasses feature the following logo: Maui Jim logo on the temple and lensThis frame features a spring hinge, which keeps its initial balance and adjustment, thereby avoiding the need for subsequent adjustments.These Sunglasses work well for people whose style is: Sporty.Ideal for usage with: Sports, Everyday Driving.Maui Jim Byron Bay-746 Sunglasses come with a cleaning cloth and protective carrying case.This product is made in Italy.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.