Lens Type: MirrorGrilamid: Grilamid is a resilient type of nylon specifically formulated for flexibility| stability| and durabilityNew for 2015| a lightweight| streamlined glass with wide panoramic visionIntegrated frontal air ventilationInterchangeable Megol® rubber nose padCo Injected Megol® rubber tipped ear armsRW - Multi layer mirror coating cuts glare and increases contrastScratch resistant IDRO lens| will repel water and dust to optimize visionSupplied with spare clear polycarbonate lens| thermoformed protective case and cleaning cloth