To use these t-shirts, simply put them on and enjoy the comfort they offer. When it comes to washing, remember to turn them inside out and wash with similar colors in cold water. Only use non - chlorine bleach if needed. For drying, hanging them up is the best way to keep them in good shape, but you can also use the tumble dryer on a cool or low - heat setting. Avoid using fabric softener because it might make the colors fade. Also, don't iron or dry clean these t - shirts to keep their quality intact.