This girls' shirt by Wonder Nation is a solid green short-sleeve t-shirt featuring Wonder Girl. It is a pullover style made of a blend of cotton and modal fabric, with a light fabric wash. The shirt is size 7 and suitable for casual occasions in all seasons, with a chest size of 26 inches. It is machine washable and ideal for activities like walking, making it a comfortable and colorful addition to a young girl's wardrobe. from armpit to armpit is 13" and from top to bottom is: 20".