Old Gringo - Sharon (Pink Mad Dog) - Women's: Show off your sense of style in this classy mule. Stunning embroidered design. Goat leather upper. Leather lined. Leather outsoles and heel. Tip of heel has added rubber for slip-resistance. Old Gringo(R) boots go through a 130 step handmade production process. Old Gringo(R) also develops and tans its own leathers and textures to make sure the end result is a superior quality product.