These Merrell women's sandals are super easy to use. First, adjust the dual top and back strap hook - and - loop closures to fit your feet comfortably. You can wear them for casual walks or for more formal occasions. When it comes to maintenance, use a soft brush or cloth to clean the upper part. For the rubber outsole, a mild soap and water can be used to keep it clean. Avoid exposing the sandals to extreme heat or direct sunlight for long periods as it may damage the materials. Also, don't use harsh chemicals on them, as this can affect the quality of the textile, neoprene, and rubber.