These XENOS Ragnarok tank tops are easy to wear. Just put them on like any other top. For men and unisex sizes, you can choose from XS to 2XL, and for women, sizes range from XS to 4XL. When it's time to clean them, remember to machine wash cold and turn them inside out. Wash 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 use the tumble dryer on a cool or low - heat setting. Don't use fabric softener as it can make the colors fade. And don't iron or dry clean these tank tops to keep them in good condition.