To use your Merry Wolfmas sweatshirt, just put it on and enjoy the festive look. When it gets dirty, machine wash it cold and turn it inside out. Wash it with clothes of similar colors. Only use non - chlorine bleach if really needed. After washing, you can hang it to dry for the best results, or you can use the tumble dry function on a cool or low - heat setting. Remember, fabric softener might make the colors fade, so don't use it. Also, don't iron or dry clean the sweatshirt to keep it in good shape.