Oakley Si M Frame 2.0 is a sport-focused shield sunglass designed for high-coverage outdoor performance, combining a durable nylon frame with protective polycarbonate lenses. Key attributes: Black | Nylon | Impact-resistant polycarbonate lenses | Sport lens with wide field of vision | Interchangeable trial lenses | Compatible with prescription lenses | Original Oakley case included | Shield wraparound design | Matte finish | Opaque finish | Dimensions & fit: Calibre (lens width): 32 mm | Bridge: 132 mm | Temple: 136 mm | Height: 51.0 mm | Composition & care: Nylon | Polycarbonate