To use these Gruss Vom Krampus tank tops, simply put them on and enjoy the comfort. When it's time to clean, remember to machine wash them in cold water, turning them inside out and washing with similar colors. Only use non - chlorine bleach if necessary. After washing, it's best to hang them to dry, but you can also tumble dry on a cool or low - heat setting. Avoid using fabric softener as it can make the colors fade. Also, don't iron or dry clean these tank tops to keep them in good condition.