Oh, there is no small undershirt, you can wear a short-sleeved or sleeveless in the inside, is not yet summer, but also a little cool, it is recommended to wear a jacket, set in the short-sleeved outside. Brother play ball are like this with.
Considering that little girls are usually more concerned about other people's opinions, you can buy a beautiful dance practice dress (short-sleeved kind). Little sister, this kind of thing do not need to worry, how to be happy how to come.