Labeling under the Act on Quality Control and Safety Managementof Industrial Products Precautions for Use of Shoes In case of natural leather. Dry the shoes in the shade. When they are wet, do not dry them in direct rays of the sun or with a fire. Wipe them softly with a brush. Store them at an appropriate temperature and at a humidity level. In case of synthetic leather. Dry the shoes in the shade. Avoid using them, if possible, at a place where there is oil. When they are placed next to fire, they may be deformed or transformed. To remove the dirt or stain of their surfaces, use a cloth soaked with liquid soap.