To use these T-shirts, simply put them on and enjoy their comfort. When it's time to clean, machine wash them in cold water, turning them inside out and washing with similar colors. Only use non - chlorine bleach if necessary. After washing, you can hang them to dry for the best results, or use the cool/low heat setting in the dryer. Avoid using fabric softener as it may fade the colors. Don't iron or dry clean these shirts to keep them in good condition.