Most of the sandals are canvas shoes, which can easily get dirty. For common stains, we can solve them by washing with water. However, after water-washing, the area around the shoe eyelets often turns yellow due to rust stains from metal eyelet fading. To solve this problem is rather simple. Before wearing or washing, apply some transparent nail polish on the shoe eyelets. This not only prevents metal oxidation but also keeps your shoelaces looking new for a long time. When the shoes get dirty, you can gently scrub them with water mixed with detergent and then rinse with clean water. Place them in a ventilated, cool place to air dry, avoiding direct sunlight and exposure. Never use hot air or open flames to dry them, as it may cause aging, de-gluing, fading, and severe deformation. Excessive direct sunlight and improper care methods like blow dryer's hot air will reduce the lifespan of the shoes. Shoes should not be soaked for too long when cleaning; generally, soaking time should not exceed 20 minutes. If you plan to store them for a long time, clean the shoes first, let them dry, and then store them in a cool, ventilated place so that the shoes have enough time to dry completely to avoid mold. For genuine leather shoes, it's best to fill the inside with paper balls or shoe trees to prevent serious deformation. Hang the shoes upside down with the toe pointing down and the sole against the wall to dry in a well-ventilated area at room temperature. This prevents water from seeping into the midsole foam material.