To use these tank tops, simply put them on and enjoy their comfort. For men and unisex sizes, choose from XS to 2XL. Women can pick from XS to 4XL. When it's time to clean, remember to machine - wash them cold and turn them inside out. Wash with clothes of similar colors. Only use non - chlorine bleach if needed. After washing, you can hang them to dry for the best look. If you're in a hurry, you can tumble dry on cool or low heat. Don't use fabric softener because it might make the colors fade. Also, avoid ironing and dry - cleaning to keep the tank tops in good condition.