Balenciaga Oval Open Toe Mules in Black Calfskin leather with leather sole. Made in Italy. Approx 75mm / 3 inch heel. BALF-WZ91. 590999 WA8F4. About the designer: Cristóbal Balenciaga started his couture house back in 1918, influencing the next century of fashion with his dramatic, sculptural silhouettes. In 2015, the brand announced that Demna Gvasalia would be taking over as the new creative director, bringing his signature edge to the classic luxury fashion house.