Tee made of 100% Cotton; Shorts made of 95% Cotton and 5% Spandex. This Hello Kitty tank and short set is great for lounging or playing! Racerback style tank has narrow straps in contrasting color and features allover Hello Kitty print. Wide elastic waistband shorts have contrasting color drawstring. Turn inside out. Machine wash cold. Wash separately or with like colors. Gentle Cycle. Only non-chlorine bleach when needed. Tumble dry low. Remove promptly. Do not iron. Sizes run as follows: Small (3-5), Medium (7), Large (9) and X-Large (11-13). This is the teen/adult line - the sizes run small, but this is not the kids line.