Using these Naot Crepe sandals is easy. Just slip your feet in and you're ready to go. They're true to size, so pick your regular shoe size. When it comes to care, keep them away from water as the suede can get damaged. You can use a soft brush to clean off any dirt on the suede. Also, store them in a cool, dry place when not in use. Remember, they're not slip - resistant, so be careful on wet or slippery surfaces. And since they're not orthotic - friendly and don't have a removable footbed, you can't add your own inserts.