Mixing style and technology, the Oakley SI Fuel Cell MultiCam Alpine is perfect for snowy climates. Developed to reduce your visual and near-IR signature, these sunglasses allow you to travel discreetly across an ice-capped mountain or frosted field. Built with a stress-resistant O-Matter frame, these sunglasses are both lightweight and durable. Patented high definition optics provide razor-sharp vision at every angle, ensuring you'll always have superior optical clarity and a tactical advantage. For reliable defense in harsh conditions, the Plutonite polycarbonate lenses offer impact protection and fully block UVA, UVB, UVC and harmful blue light up to 400 nanometers.