These EMILY-377 boots are super easy to use. Just unzip the full-length inside metal zip closure and slip your feet in. The lace-up design allows you to adjust the fit to your liking. When it comes to sizing, make sure to check the conversion from Australian to US sizes as mentioned in the product details. As for maintenance, use a soft cloth to wipe off any dirt or dust regularly. Since they are made of stretch vegan leather, avoid exposing them to extreme heat or direct sunlight for long periods as it might damage the material. Also, remember this is a pre-order item, so be patient while waiting for your boots to arrive. In case we face any issues with the size availability, we'll reach out to you right away.