To use these men's t-shirts and premium t-shirts, simply put them on and enjoy the comfort. When it's time to clean them, machine wash cold inside out with clothes of similar colors. Only use non - chlorine bleach if needed. For the best look and to preserve the fabric, hang dry them after washing. If you're in a hurry, you can tumble dry with cool or low heat. Remember, fabric softener can make the colors fade, so it's best to skip it. Also, don't iron or dry clean these shirts to keep them in good condition.