US size might not right, please buy according to CM data in the size chart.
3T=TAG100=length about 38CM(CM devaition +-1.5CM) for kids height around 90CM
4T=TAG110=length about 41CM(CM devaition +-1.5CM) for kids height around 100CM
6=TAG120=length about 43CM(CM devaition +-1.5CM) for kids height around 110CM
8=TAG130=length about 46CM(CM devaition +-1.5CM) for kids height around 120CM