Persol sunglasses BO-0034

Those are a pair of Persol sunglasses, likely the PO3269S model.
Persol is an iconic Italian luxury eyewear brand known for its craftsmanship and "Silver Arrow" hinge design, which is visible on the sides of the frames in your photo.
Key Features of This Pair:
Frame Color: "Transparent" or "Crystal." This clear acetate look is a modern take on their classic silhouettes.
Lens Color: Likely "Green" or "Polarized Green," which is a signature color for the brand.
The Meflecto System: If you look at the dark temples (arms), those small vertical metal strips are part of Persol's patented flexible stem system, designed to reduce pressure on the head for a more comfortable fit.
Authenticity Markers: You can see the "Persol" logo etched into the upper corner of the right lens (viewer's right), which is a standard security and branding feature.
Care Tips for Clear Frames
Transparent frames can sometimes show dirt or oils more easily than dark ones. To keep them looking sharp:
Avoid Heat: Never leave them on a car dashboard; high heat can warp the acetate.
Clean Regularly: Use a microfiber cloth and a dedicated lens cleaner. Avoid using your shirt or paper towels, which can cause micro-scratches over time.
Check the Screws: Because of the Meflecto system's flexibility, it's good practice to occasionally ensure the hinge screws are snug.