Using these sneakers is a breeze. Just lace them up to your desired tightness and you're ready to go. They're perfect for everyday wear, whether you're running errands or going for a casual walk. When it comes to sizing, make sure to measure your feet from heel to toe and check the size chart. This will help you get the best fit. As for maintenance, you can wipe the PU upper with a soft, damp cloth to keep it clean. The cotton lining might get a bit dirty over time, but it's breathable and will air - dry quickly. The rubber outsole is durable, but try to avoid rough surfaces that could cause excessive wear. With proper care, these sneakers will stay in great shape for a long time.