These OOFOS OOMega Ooahh sandals are easy to use. Just slip them on your feet whenever you want to give your feet a break, like after a long walk or a workout. When wearing, make sure your feet are dry to get the best comfort. For maintenance, you can use a mild soap and water to clean the sandals. Just gently scrub them and let them air - dry. Avoid using harsh chemicals as they might damage the OOfoam™ material. Don't expose them to extreme heat or direct sunlight for a long time, as this could affect the shape and performance of the sandals.