Using these boots is a breeze. Just unzip the full inner side metal zip closure, slip your feet in, and zip them up. You can adjust the double grommet buckle straps to your comfort. The removable strap details let you customize the look according to your style. As for sizing, remember to follow the US sizing if you're in Australia and get 1/2 or 1 size larger. When it comes to maintenance, use a soft cloth to wipe off dirt. Avoid exposing the vegan leather to excessive heat or moisture. Since this is a pre-order item, be patient as it takes about 12 days to reach our warehouse from Demonia in the USA. And if we face any issues with your size, we'll let you know right away.