Slip them on and go!.75 inch Leather Stack Heel. 100% Calf Hair. Zebra print mule features Black and White Calf Hair with a Cherry Napa leather trim. Napa Leather Lining for additional support and comfort. Leather Sole. [Note - If your Calf Hair becomes matted or dirty you can clean it with a damp cloth or a soft brush, always working in the direction of the grain, never brushing the fur back and forth.]