The look of Holbrook, from its iconic style to keyhole bridge and metal rivets, has been scaled up to fit larger faces. Even with enhanced sizing for larger faces, it stays comfortable with lightweight O Matter frame material. Pure Plutonite lenses filter out 100% of all UV while XYZ Optics maintains clarity at every angle of view. Prizm is a revolution in lens optics built on decades of color science research. Prizm lenses provide unprecedented control of light transmission resulting in colors precisely tuned to maximize contrast and enhance visibility. Colour: Matte Brown Tortoise/Prizm Black.