Round neck black T-shirt with embroidered Wing Chun GTWCKF Association logo on the front left of the shirt. 
 
Sizing Guide (measurement across chest):

Adult muscle shirt size  XS / 14 (46cm)
Adult muscle shirt size S (48cm)
Adult muscle shirt size M (52cm)
Adult muscle shirt size L (55cm)
 
Children's regular shirt size 4 (37cm)
Children's regular shirt size 6 (39cm)