These 'Soul of Fire Ninja' hoodies are super easy to use. Just put them on and enjoy the cool look! When it comes to washing, remember to turn them inside out and wash them in cold water with similar colors. Only use non - chlorine bleach if it's really dirty. After washing, you can hang them to dry for the best result. If you're in a hurry, you can tumble dry on a cool or low - heat setting. But don't use fabric softener because it can make the colors fade. And please don't iron or dry clean these hoodies. They're available in sizes from S to 4XL, so you can find the perfect fit for you.