Like many of the world’s top eyewear makers, we offer Italian Mazzucchelli 1849 zyl acetate in select models for the true aficionado. Zyl acetate is a high quality material made of renewable wood pulp and natural cotton fibers. The material’s incredible color-fastness stems from the hue being embedded in the material rather than being sprayed which results in a never peeling, never yellowing, never fading high-fashion frame.