100% Calf Hair. .75 inch Leather Stack Heel. Cheetahprintslipper features MochaCalf Hair withaChocolate faille trim and gold signature Palm Treecharm on the back heel. Napa Leather Lining for additional support and comfort. Leather Sole. If yourCalf Hair becomes matted or dirty youcan 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.