Using these products is easy. Just put them on like you would any regular item. When it comes to the string adjustment, you can loosen or tighten it according to your comfort. For care, you can machine wash them in cold water on a gentle cycle. Avoid using bleach as it may damage the fabric. After washing, tumble dry on low. If you notice any issues with the string or the fabric, it's best to contact customer service. And remember, these are missy-sized, so make sure they fit your body type well before wearing them out.