Using these sneakers is as easy as just putting them on like any other pair. When you're choosing a size, make sure to use the provided converter to get the right fit. Note that the price already has import duties for the USA, so there won't be any extra charges on that front. For maintenance, you can clean them with a soft brush and mild soap when they get dirty. Avoid using harsh chemicals as they might damage the unique designs on the shoes. And enjoy free shipping within the USA when you order these awesome Kamen Rider Build sneakers!