To use these Josef Seibel slides, simply adjust the hook - and - loop straps to your preferred tightness for a comfortable fit. You can wear them indoors or outdoors throughout the day. When it comes to maintenance, clean the leather upper with a soft, damp cloth and let it air - dry. Avoid getting the cork/latex midsole wet for long periods as it may affect its shape. Also, store the slides in a cool, dry place to keep them in good condition.