To use these men's shirts, just put them on and enjoy their comfort. When it's time to clean, machine wash them cold and inside out with similar colors. Only use non - chlorine bleach if necessary. After washing, hanging them to dry is the best way, but you can also use a tumble dryer on cool or low heat. Remember, fabric softener can make the colors fade, so don't use it. And never iron or dry clean these shirts to keep them in good condition.