With the sleek design of the Oakley SI Straitjacket Matte Black Frame with Grey Lens Glasses, you are getting the best of the best. With over 30 years in the industry, Oakley prides themselves on using nothing but the most cutting-edge technology in the optical industry. The Straitjacket design is no exception. These matte black frames come with crystal clear vision across the entire lens. With lenses constructed of Plutonite with Iridium coating, your eyes will be completely protected from sun's rays. Plus, glares and harsh lighting will no longer be an issue.