Optional RX Insert available (65RX) - High base panoramic lens for a wide unobstructed field of view - Frame made of new Elasto LT chemical resistant material - New Soft-Touch comfort pads - Self-adjusting temples that insure a secure yet comfortable fit - The lenses are protected with North's exclusive 4A Coating: Anti-Fog, Anti-Scratch, Anti-UV 99.9%, Anti-Static - Provided with two Flexi-Fit soft nose-pieces (regular and narrow) for comfort and adaptability MADE IN USA