To use these men's t-shirts and premium t-shirts, simply put them on and enjoy their comfort. When it's time to wash, remember to machine wash them cold, turning them inside out and washing with like colors. Only use non - chlorine bleach if needed. For the best look, hang them to dry after washing. You can also tumble dry on cool or low heat. But be careful, fabric softener can make the colors fade, so don't use it. And don't iron or dry clean these shirts to keep them in good condition.