How to keep cotton shoes?

Can't be washed with water. The white one is pantothenate. This kind of leather is specially tanned and can't be washed. You can send it to a place that specializes in maintaining leather shoes and take care of the surface. After returning home, you can put mothproof drugs such as camphor in it, often take it out for ventilation and proper sun drying to keep the leather shoes with good softness and brightness.