Sizes as follows (cm):
baby tee xs (cm): actual chest 40.5, body length 52, sleeve 34
baby tee s (cm): actual chest 43, body length 56, sleeve length 37
baby tee m (cm): actual chest 45.5, body length 59.5, sleeve length 39.5
adult M (cm): actual chest 51, body length 73.5, sleeve length 43
adult L (cm): actual chest 56, body length 76, sleeve length 47
