Whipray Gray Frame Red Mirror Safety 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: Red Mirror Anti Fog Frame: Shiny Gray Technology: All Bullhead Safety Eyewear is made from 100% virgin materials.