To use these men's t-shirts, simply put them on like any other shirt. When it's time to clean them, machine wash them cold inside out with clothes of similar colors. Only use non - chlorine bleach if needed. After washing, it's best to hang them dry. You can also tumble dry on cool or low heat. Remember, using fabric softener might make the colors fade, so avoid it. And don't iron or dry clean these shirts to keep them in good condition.