Made of 100% Cotton. Tank includes race back, printed application and contrasting stitching. Short has elastic waist band, printed application and contrasting stitching. Turn inside ou. Machine wash cold. Wash separately or with like colors. Gentle cycle. Only non-chlorine bleach when needed. Tumble dry low. Remove promptly. Warm iron 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.