I Need Coffee GIFs Tenor Persol Key West Sunglasses Need Coffee GIFs Tenor Need Coffee GIFs Tenor. DESCRIPTION: Born out of a rich tradition of research and quality, a history of technological perfection and attention to fine detail, Persol glasses are in a class of their own. FEATURES: Frame material: Metal Measurements: 62 17 145 Lenses: Crystal lenses are a point of pride for Persol. Representing quality and excellence, most models use lenses made from the most precious optical material of natural origin guaranteeing protection and visual clarity. Meflecto: Patented at the end of the 1930s, the Meflecto is the world s first flexible stem system designed for maximum comfort by eliminating pressure on the head from the arms of glasses. The Arrow: Persol s founder Giuseppe Ratti intuitively recognized the need to differentiate and make his products iconic and recognizable.