Bollé Nerox Key Sunglasses combine a classic square silhouette with a keyhole bridge and polarized lenses for clear, glare‑free vision. The model is built for comfortable, all‑day wear thanks to Bollé’s flexible hinge design. Key attributes: Olive Crystal | Brown | Acetate | Polarized lenses | UV protection | Anti-scratch coating | Hydrophobic coating | Flexible (signature) hinge for comfort | Lightweight construction | Square frame | Keyhole nose bridge | Minimalist temples | Dimensions & fit: Lens width: 52 mm | Bridge: 20 mm | Temple length: 140 mm | Small/medium fit | Composition & care: Frame: Acetate | Metal elements | Lenses: Polarized | Wipe lenses with a microfiber cloth. Hand wash frame with mild soap. Store in a protective case. Avoid abrasive cleaners and exposure to high heat.