To use your Grinchbusters crewneck sweatshirt, simply put it on and enjoy its comfort. When it's time to clean, machine wash it in cold water, turning it inside out and washing with similar colors. Only use non - chlorine bleach if necessary. After washing, you can hang it to dry for the best look, or you can tumble dry it on a cool or low - heat setting. Remember, using fabric softener might make the colors fade. Also, don't iron it or take it to the dry cleaner. This way, your sweatshirt will stay in great shape for a long time.