TYR Technoflex 4.0 Performance Goggle Made using the highest quality materials Tested to give you the edge in all your activities Used by both professional and recreational users Technoflex 4.0 is our newest version in the Technoflex family. Our new technology allows different hardness's of TPR to be placed in specific locations. Softer TPR around the face and firmer TPR along the nosebridge and around the lens. Optically clear, shatter resistant Lexan polycarbonate lenses are UV protected and anti-fog coated. Oversized lenses provide greater peripheral vision. Ratchet side clips allow for easy tightening of headstrap.