This hoodie is super easy to use. Just slip it on and you're ready to go out in style. When it comes to sizing, remember our international sizing is a bit smaller than the USA standard, so order 1 - 2 sizes up for a comfortable fit. You can refer to our size chart to get the most accurate measurement. For cleaning, simply throw it in the washing machine using cold water on a gentle cycle with mild detergent. After that, hang it up to dry. Keep in mind that the measurements are approximate, and there may be a small difference. Also, don't be surprised if the color on your screen looks a bit different from the actual hoodie because of monitor settings.