Serengeti Tellaro 8819 Sunglasses combine a classic navigator silhouette with high-performance mineral lenses. Designed for variable light, they offer polarized, photochromic vision and adjustable temples for a secure, comfortable fit. Key attributes: Black | Blue | Metal | Photochromic (light-adjusting) lenses | Polarized lenses | Spectral control | UV protection | Adjustable wire-core temples for a custom fit | Adjustable nose pads | Prescription-ready (RX available) | Navigator frame | Full-rim design | Matte black finish with blue inner temple tips | Double-injected rubber temples | Dimensions & fit: Lens width 60 mm | Bridge 17 mm | Temple 145 mm | Large fit | Base curve 6 | Composition & care: Metal frame | Mineral glass lens | Rubber temple tips | Clean lenses with a microfiber cloth and store in the provided case.