PO3291S The perfect balance of smart and stylish achieved through timeless shapes and fun signature colours. Persol arrows and DNA brand colour codes bring the classic rectangular shape to life. MODEL CODE: PO3291S 95/31 57-19 FRONT COLOR: Black LENS COLOR: Green LENS MATERIAL: Crystal FRAME MATERIAL: Acetate MEASUREMENTS: 57-19-145 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.