leather, metal applications, solid color, snap button closure, narrow toeline, geometric heel, covered heel, leather lining, leather sole, contains non-textile parts of animal origin, mules, small sized.PROENZA SCHOULER Mules. leather, metal applications, solid color, snap button closure, narrow toeline, geometric heel, covered heel, leather lining, leather sole, contains non-textile parts of animal origin, mules, small sized. Soft Leather