To wear these Christmas Groot tank tops, simply pick the right size for you - men and unisex sizes go from XS to 2XL, and women's sizes are from XS to 4XL. Put them on and enjoy the comfortable, lightweight feel. When it's time to clean them, machine wash cold and turn them inside out. Wash with clothes of similar colors. Only use non - chlorine bleach if needed. After washing, it's best to hang them to dry. You can also use a tumble dryer on cool or low heat. Don't use fabric softener as it might make the colors fade. And remember, don't iron or dry clean these tank tops to keep them in good shape.