Nike FIRE P FD1818 451 sunglasses combine sport-inspired styling with polarized lenses for clear, glare-reduced vision during outdoor activities. Key attributes: Blue | Bio-injected | Polarized lenses | Triacetate lenses | Bio-injected frame | Square frame | Full-rim construction | Dimensions & fit: Lens width: 54 mm | Bridge: 17 mm | Temple length: 140 mm | Composition & care: Frame: Bio-injected | Lenses: Triacetate | Wipe lenses with a microfiber cloth; avoid abrasive cleaners and solvents.