This is the official "OHØJ" merchandise from Morten Münster, which is only sold on FirstGrade.dk.
This T-Shirt is made in Europe, and has FirstGrade's good quality.
20% Polyester - 80% Cotton
XXS = 8 - 10 years / from 120-140 cm
XS = 10 - 12 years / from 140-158 cm
S = 12 years + / from 158 cm