Using your 'The Genie' men's T-shirts and Premium T-shirts is as easy as putting them on! Just pick the right size for you. When it comes to washing, remember to use cold water and turn the shirts inside out. Wash them with clothes of similar colors. Only use non - chlorine bleach if really necessary. After washing, hanging them to dry will give the best results, but you can also use a tumble dryer on a cool or low - heat setting. Don't use fabric softener because it might make the colors fade. And never iron or dry clean these shirts to keep them in good condition.