Using these Wolky Ikaria sandals is easy. First, adjust the velcro closures to get a perfect fit for your feet. Put them on like you would any other sandal and start walking. When it comes to maintenance, you can use a soft, damp cloth to clean the leather parts. Avoid using harsh chemicals as they might damage the leather. Store the sandals in a cool, dry place when not in use. Remember, the measurements may vary by size, so choose the right size carefully for the best fit. And if you want to use custom orthotics, just remove the cushioned insole and insert them.