These sunglasses are perfect for numerous activities from playing sports to relaxing on the beach. The lenses come with a CLEARSHELL® Scratch Coating which protects the lenses from scratching. They also come with Maui Jim`s patented, color-infused lens technology that wipes out 99.9% of glare, 100% of harmful UV, and boosts color via specially designed lens treatments. The lenses are also very durable. The frame is made of a light, durable, polymer with extreme bending strength known for retaining its shape. The hinges are anti-corrosive and stainless steel with a nylon resin coating that offers lightweight strength.