Serengeti Wakota Sunglasses combine a lightweight Grilamid BTR frame with Saturn photochromic polarized lenses to deliver adaptable glare reduction and clear vision in changing light conditions. Key attributes: Shiny black | Grilamid BTR | Polarized lenses | Photochromic (Saturn) lenses | 100% UV protection | Spectral Control technology | Anti-scratch coating | Spring/flex hinges | Lightweight frame | Sculpted nose rests | Retro square shape | Angular top line | Full-rim frame | Slim temples with logo | Dimensions & fit: Lens width: 56 mm | Bridge width: 16 mm | Temple length: 135 mm | International fit | Medium fit | Composition & care: Grilamid BTR frame | Saturn photochromic polarized lenses | Clean lenses with a microfiber cloth and lens cleaner. Store in a protective case. Avoid abrasive cleaners and prolonged exposure to heat.