Using these Dr Martens shoelaces is super easy. Just thread them through the eyelets of your shoes in your preferred pattern. Whether you want a simple straight lacing or a more fancy criss - cross style, it's up to you. When it comes to maintenance, if they get dirty, you can gently hand - wash them in lukewarm water with a mild detergent. Avoid using harsh chemicals as they might damage the laces. Let them air - dry naturally. Also, make sure to tie the laces tightly to prevent them from coming undone while you're walking. With proper care, these laces will last you a long time and keep your shoes looking great.