UV Protection Category: 3. Lens Type: Mirror. Grilamid: Grilamid is a resilient type of nylon specifically formulated for flexibility, stability, and durability. New for 2015, a lightweight, streamlined glass with wide panoramic vision. Integrated frontal air ventilation. Interchangeable Megol® rubber nose pad. Co Injected Megol® rubber tipped ear arms. RW - Multi layer mirror coating cuts glare and increases contrast. Scratch resistant IDRO lens, will repel water and dust to optimize vision. Supplied with spare clear polycarbonate lens, thermoformed protective case and cleaning cloth.