R.O.B.O.O.T.U.K.A.I: sometimes our children are like that: tireless, witty, active, talkative, so a robot can be your friend:) The natural cotton composition allows the skin to breathe even during the biggest romp. The T-shirt has two press studs at the neck (except for sizes 104, 110, 116).Composition: 95% cotton, 5% elastane.