Madewell The Harper Mule in Metallic is made of buttery soft gold metallic leather. This is a dressed-up take on the Madewell signature slip-on mules (with, yep, the same foot-hugging fit and oh-so-walkable stacked heel). Cushiness alert: they added an extra layer of padding to make them even comfier. 2 1/2" heel Leather upper and lining Man-made sole Excellent Condition Size 8.5