Tank made of 60% Cotton and 40% Polyester; Shorts made of 100% Fleece Polyester. You'll want to stay in this soft-as-a-feather loungewear all day! Fitted V-neck tank top has allover heart burn-out and a felt outline of Hello Kitty. Tank is detailed with buttons down the front and has contrasting color adjustable straps. Elastic waistband shorts are detailed with allover Hello Kitty print and 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. Warm iron on reverse side if needed. 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.