Whipray Antifog Blue Mirror GlassesThese Whipray safety glasses feature frames made with TR 90 material. TR 90 frame technology is extremely comfortable and can bend under pressure resulting in a custom contoured fit for all day wear. The one hundred percent visually correct cylinder lens is sculpted at a ten base curve for superior coverage and crisp visual acuity. Lens: Blue Mirror Anti Fog Frame: Shiny Black Technology: All Bullhead Safety Eyewear is made from 100% virgin materials.