BMW BS0049 91X sunglasses combine motorsport-inspired styling with a navigator frame designed for driving and bright conditions. The model pairs a bold blue finish with mirror lenses for reduced glare and clear vision on the road. Key attributes: Blue | Prescription-ready (RXable) | Navigator shape | Blue mirror lenses | Dimensions & fit: Lens width: 58 mm | Bridge width: 16 mm | Lens height: 43 mm | Temple length: 140 mm | Caucasian fitting