Nike Livefree Classic N sunglasses combine a sporty, rectangular frame with mirrored lenses for reliable sun protection and everyday outdoor use. Key attributes: Gray | Plastic | Polycarbonate lenses | UV protection (Category 3) | Full-rim frame | Standard hinges | Prescription-friendly | Rectangular frame | Mirrored lenses | Single bridge | Dimensions & fit: Lens width: 53 mm | Bridge width: 17 mm | Temple length: 140 mm | Total frame width: 128 mm | Size: Small (53/17/140) | Fits narrow to average face shapes | Composition & care: Plastic frame | Polycarbonate lenses | Clean lenses with a soft microfiber cloth. Store in a protective case. Avoid abrasive cleaners and high heat.