Using these Wolky Nomad sandals is easy. Just adjust the velcro straps on the front to get a comfortable fit for your feet. They're suitable for daily wear in summer, whether you're going for a walk or running errands. When it comes to maintenance, use a soft, dry cloth to wipe off any dirt or dust after each use. If they get wet, let them air - dry naturally. Avoid using harsh chemicals or putting them in the washing machine as this could damage the leather and other materials. Also, keep them in a cool, dry place when not in use to prolong their lifespan. Remember, the size measurements may vary a bit, so choose the size based on your normal foot size and the given width guideline (W for average to fuller feet).