To use these Naot Patricia sandals, simply adjust the hook-and-loop ankle strap to fit your foot comfortably. You can wear them all summer long for various occasions. When it comes to sizing, if you're a half size, remember to size up. Since the sandals are not slip-resistant, be careful when walking on wet or slippery surfaces. To maintain them, keep them away from excessive moisture. You can gently clean the suede footbed with a soft brush. And as the footbed molds to your foot over time, try not to share them with others to keep the fit just right for you.