Sunglasses Persol Typewriter evolution Tortoise PO3210S 24 。Building on the classic look and crafted ergonomics of Persol design, the sophisticated profiles of this model put a bold, contemporary spin on the discerning style of the modern gentleman. This modern square-shaped style has slender temples, Typewriter-inspired metal detailing and an icon-inspired look. MODEL CODE: PO3210S 24/31 51-21 FRONT COLOR: Havana LENS COLOR: Green LENS MATERIAL: Crystal FRAME MATERIAL: Acetate MEASUREMENTS: 51-21-145 FIT: Regular Fitting - A medium lens front designed for those who prefer to cover an average portion of the face. BRIDGE CHOICE & NOSEPAD: High Bridge Fit - Offers a more secure and comfortable fit for those with a high nose bridge and lower cheekbones. A good choice if the bridge of your nose is above the level of your pupils.