Serengeti Rick Sunglasses combine a rimless‑inspired silhouette with Serengeti’s PhD 2.0 photochromic, polarized lens technology for clear, comfortable vision while driving or during everyday wear. Key attributes: Matte dark brown | Nylon | PhD 2.0 photochromic lenses | Polarized | Spectral control | Driver lens category 2 to 3 | Impact-resistant lenses | Rubber-gripped temple tips | Rubber-gripped nose pads | Lightweight construction | RX compatible | Rimless-inspired silhouette | Reduced lens size for a smaller fit | Featherweight temple tips | Dimensions & fit: Lens width: 64 mm | Bridge: 15 mm | Temple: 130 mm | Medium large fit | Composition & care: Frame: Nylon | Lens: PhD 2.0 (photochromic, polarized) | Clean lenses with a microfiber cloth and lens cleaner. Store in the protective case when not in use. Avoid abrasive cleaners and prolonged exposure to heat.