Using these men's t - shirts and premium t - shirts is easy. Just put them on and enjoy your fitness activities. When it's time to clean, machine wash them cold inside out with similar colors. If there are stains, you can use non - chlorine bleach, but only when really needed. After washing, it's best to hang them to dry. If you're in a hurry, you can tumble dry on cool or low heat. Remember, don't use fabric softener because it can make the colors fade. Also, stay away from ironing and dry cleaning to keep the shirts in good condition.