John Dalia presents the C642 Classic Sunglasses — a squared acetate frame accented with yellow gold pins and blue gradient CR39 lenses, engineered for refined everyday wear and secure authentication. Key attributes: Havana | Gold | Acetate | 100% UV protection | CR39 gradient lenses | Anti-reflective coating on inner lens surface | Passive NFC authentication (embedded in right temple) | Smartphone-activated verification | Squared shape | Sculpted acetate temples | Yellow gold decorative pins | Exposed wirecore | Blue gradient lenses | Dimensions & fit: Eye 50mm | Bridge 20mm | Temple 145mm | Composition & care: Acetate | CR39