To use these t-shirts, simply put them on and enjoy their comfort. When it's time to wash, machine wash them cold inside out with similar colors. Only use non - chlorine bleach if necessary. After washing, it's best to hang them to dry for the best results, but you can also tumble dry on cool or low heat. Remember, using fabric softener might make the colors fade. And don't iron or dry clean these shirts to keep them in good condition.