How to use: Just put on your 'Who Lives In a Batcave Under the Sea' tank top and enjoy the comfort. For men and unisex sizes, pick from XS to 2XL. Women can choose from XS to 4XL. When it's time to clean, machine wash it cold, turning it inside out and washing with similar colors. Only use non - chlorine bleach if needed. Hang it to dry for the best look, but you can also tumble dry on cool or low heat. Be careful not to use fabric softener because it can make the colors fade. And don't iron or dry clean the tank top to keep it in good shape.