To use these tank tops, simply put them on and enjoy their comfort. For men and unisex sizes, pick the size from XS to 2XL according to your body measurement. Women can choose from XS to 4XL. When it comes to cleaning, use cold water in the machine and turn the tops inside out. Wash them with clothes of similar colors. Only use non - chlorine bleach if needed. After washing, hanging them to dry will give the best results, but you can also tumble dry on cool or low heat. Remember, fabric softener can make the colors fade, so don't use it. And don't iron or dry clean these tank tops to keep them in good condition.