Zeal Optics Maniak Goggle Zeal Optics® are unlike anything you've seen or worn! Hyper flash mirror treatment provides optimal protection by reflecting the sun's harmful rays, while allowing more light than is provided by a traditional full-mirror coating. This provides protection without sacrificing clarity and performance in both low light and bright conditions. All goggles are made with high quality, durable and distortion-free Japanese, Swiss, and Italian polycarbonate and acetate lenses. The unique infused Anti-Fog treatment does not rub off like some goggles. The resulting dual lens ACTV and Z-Era lenses are superior for their optical clarity, flexibility, and anti-fog properties.