To use these New Balance Fresh Foam Roav shoes, simply lace them up tightly for a secure fit. They're great for running, walking, or any other physical activity. When it comes to maintenance, you can gently wipe the shoes with a damp cloth to clean off dirt and dust. Avoid using harsh chemicals as they might damage the fabric. Also, store them in a cool, dry place to keep them in good condition. Remember, the 8 mm drop is approximate due to manufacturing variances, so don't be alarmed if there's a slight difference.