To use these women's T - shirts and premium T - shirts, simply put them on and enjoy the comfort. When it's time to clean them, remember to machine wash cold inside out with similar colors. Only use non - chlorine bleach if needed. You can hang dry them for the best results, but if you're in a hurry, you can tumble dry on cool or low heat. Be careful not to use fabric softener because it might make the colors fade. And don't try to iron or dry clean these shirts to keep them in good shape.