Part of Persol’s classic ‘Calligraphy’ collection, these round PO3166S sunglasses are fitted with protective Polarised lenses; yet still pay homage to the Italian brand’s decade-long heritage. Showing off tiger-striped acetate frames, the metal-tipped pair are inspired by the art of scribing, delicately engraved at the bridge and arms; while a signature Meflecto system allows them to adapt to the shape of your face.