PO3019S 2x lenses - Original, never used sunglasses lenses AND no prescription TRANSITION lenses. This square-shaped style captures the essential values of the brand's collections over time. Thanks to the elegant arrow and Meflecto system, this model combines extreme functionality with impeccable elegance.         Model code: PO3019S 52-18 Frame color: Terra Di Siena Lens color: Green LENS MATERIAL: Crystal Frame Material: Acetate SIZE: 52-18 Best for most faces Size Guide FACE COVERAGE: Standard Fitting A medium lens front designed for those who prefer to cover an average portion of the face.