Availability: 10 in stock
The Persol 3166S sunglasses blend Italian heritage with modern versatility in a refined panthos shape that works for square and oval faces. Part of the Calligrapher Edition, these frames pair premium acetate rims with ultra-light metal temples featuring distinctive engraved stripes—a detail that sets them apart from standard round frames.
What makes the 3166S genuinely different is the patented Meflecto flexible temple system. Introduced in the 1930s and still unmatched today, Meflecto uses metal cylinders and a harmonic steel core embedded in the temples to let the frame flex and adapt to your head shape. The result? No pressure points behind the ears, no headaches during all-day wear, and a secure fit that doesn’t squeeze. The system requires over 10 additional manufacturing steps compared to standard frames—you can feel the difference the first time you put them on.
Handmade in Italy from hypoallergenic acetate, the 3166S features the iconic Persol Silver Arrow at the hinges—inspired by ancient warrior swords and a mark of authenticity since 1917. The 22mm bridge and choice of 49mm or 51mm lens widths offer options for different face sizes. These frames are prescription-ready and compatible with single-vision, progressive, and polarized lenses, making them as functional as they are stylish. Available in multiple colorways including classic Havana tortoise with green lenses, striped brown with light blue, and polarized options for serious glare reduction.
The 3166S balances vintage charm with everyday wearability—lighter and more streamlined than the chunky 649 or 714 models, but with the same attention to detail Persol is known for. Whether you need UV protection for daily driving or want prescription sun lenses for the beach, these frames deliver.
