I-AMP technology and Crystalline lens is engineered for the graphic designer, editor or artist that requires an equally balanced color spectrum to design and edit in true color * Made of acetate with an onyx frame finish * Lens is secured in the frame by the micro-engineered lens lock which reduces the stress and distortion of the optics * Adjustable floating nose pads articulate in (3) dimensions allowing you to customize your glasses for an optimal fit * 51-millimeter lens width, 15-millimeter bridge width and 130-millimeter temple length * Comes with a 1-year limited warranty against manufacturing defects * Lens is secured in the frame by the micro-engineered lenslock which reduces the stress and distortion of the optics * Narrow fit frame ideal for smaller heads