Using these Demonia RIOT-10 boots is easy. Just unzip the full-length inside zipper, slip your feet in, and lace them up through the 10 eyelets to your desired tightness. When it comes to sizing, make sure to follow the conversion guide if you're from Australia. As for maintenance, use a soft cloth to wipe off dirt regularly. Avoid exposing them to extreme heat or moisture. Since they're made of vegan leather, treat them gently. Remember, this is a pre-order item, so be patient for the 12-day delivery time. If we face any issues with your size, we'll get in touch with you quickly.