We have re-engineered our award winning design cult piece to deliver unsurpassed performance. Interchangeable lenses, endless prescription and custom options, new temple tips and fully adjustable nosepiece: Rydon Stealth boasts enhanced fit factors and astounding details. A timeless icon that continues to represent a compelling combination of performance, versatility, comfort and style. It complies with ANSI Z87.1 is the American National Standard that covers the basic requirements for personal eye and face protective devices to minimize or prevent injuries from impacts, non-ionizing radiation and chemical agents in occupational, educational and military environments. With total adjustability and super thin temple arms, the Rydon Stealth is perfect for tactical helmets and will not cause headaches from the pressure of temple arms. It also uses ImpactX Photochromic lenses which are bullet proof and blast proof whilst they have the ability to change colour from complete clear to a black grey lens when activated by UV Light.