To use these T-shirts, simply put them on and enjoy the comfort. When it comes to cleaning, machine wash them cold inside out with similar colors. Only use non - chlorine bleach if necessary. After washing, hanging them to dry is the best option, but you can also tumble dry on cool or low heat. Remember, fabric softener can make the colors fade, so skip it. Also, don't iron or dry clean these shirts to keep them in good condition.