To use these T-shirts, simply put them on and enjoy the comfort. When it's time to wash, machine wash them cold and turn them inside out. Wash with like colors to prevent color bleeding. Only use non - chlorine bleach if necessary. After washing, you can hang them to dry for the best results, or you can use the tumble dry function on cool or low heat. Don't use fabric softener as it might make the colors fade. And remember, never iron or dry clean these shirts to keep them in good condition.