Mules & clogs go well with jeans, jackets, coats, shirt dresses, etc.; moreover, they’re made using materials like leather, suede, wool, and rubber. During the 1970s the exponential growth of the fame of the brand Gucci made it one of the prime targets for counterfeiting. Thus the Gucci workshops introduced the brindle pigskin tanning process which is difficult to counterfeit. Black is the deepest shade in the color spectrum.