These XENOS tank tops are easy to wear. Just put them on and enjoy the comfort. For men and unisex sizes, you can choose from XS to 2XL, and for women, sizes range from XS to 4XL. When it comes to cleaning, remember to machine wash them cold and turn them inside out. Wash with like colors to prevent color bleeding. Only use non - chlorine bleach if needed. After washing, it's best to hang them dry. But if you're in a hurry, you can tumble dry on cool or low heat. Don't use fabric softener because it might fade the colors. And never iron or dry clean these tank tops to keep them in good condition.