These 'Back to the Sacred Timeline' tank tops are really easy to use. Just put them on and enjoy the comfort. For men and unisex sizes, you can choose from XS to 2XL, and women can pick from XS to 4XL. When it comes to washing, always use cold water and turn the tank tops inside out. Wash them with similar colors. Only use non - chlorine bleach if you really need to. After washing, it's best to hang them to dry. But if you're in a hurry, you can tumble dry on cool or low heat. Remember, fabric softener can make the colors fade, so don't use it. Also, stay away from ironing and dry cleaning to keep your tank tops in good shape.