This hoodie is super easy to use. Just slip it on and you're ready to show off your cool style. When it comes to sizing, remember our international sizing is smaller than the US standard, so order 1 - 2 sizes bigger for a better fit. Check the size chart for exact measurements. For cleaning, simply throw it in the washing machine with cold water, use a gentle cycle and mild detergent. Then hang it up to dry. Keep in mind that the measurements are approximate and there might be a little color difference between what you see on the screen and the real hoodie.