How to use these tank tops? Just put them on and enjoy their comfort! For men and unisex styles, pick the size from XS to 2XL according to your body. Women can choose from XS to 4XL. When it comes to maintenance, machine wash them cold and turn them inside out. Wash with like colors to avoid color mixing. Only use non - chlorine bleach if needed. After washing, it's best to hang them dry. You can also tumble dry with cool or low heat. Remember, fabric softener may fade the colors, so don't use it. And don't iron or dry clean these tank tops to keep them in good condition.