URBAN frame with blue mirror lenses.Blue mirror lens Cat3.These lenses are grey to look through.Category 3 â Dark tint, with light transmission at 8% to 18% - For very sunny days.Mirror changes colour when viewed from different angles.Frame options include crystal clear, gloss coke (brown) and matt black.The frame has a moulded, built-in nose piece.All pairs are supplied with a case and micro fibre cleaning cloth.