In daily activities at home, work and play, fogged lenses can be a real bother for eyeglass wearers. Optifog is a new breakthrough technology with superior anti-fog properties. It has an advanced anti-fog top coat that, when combined with the Optifog Activator, provides long lasting fog free vision. The top coat and the Activator work together like Velcro. Each of their unique properties combine to create a revolutionary anti-fog solution.