To use this hoodie, simply put it on and enjoy its cool style. When ordering, remember to order 1 - 2 sizes bigger than your normal size as our sizing is a bit smaller than the US standard. Check our size chart for precise measurements. For maintenance, you can machine - wash it in cold water using a gentle cycle and mild detergent. Then, just hang it to dry. Keep in mind that the measurements are approximate, and there could be a little difference in size. Also, don't be surprised if the color on your screen is slightly different from the actual hoodie because of monitor settings.