"Our culture is sacred and our traditions should not be put in the public domain," said Nkululeko Nxesi, a Man and Boy Foundation member who was selling the shirts.
"It's raising awareness about the way in which our culture has been undermined and attacked, mainly by the western countries. We are reclaiming our space to say let our stories be told be ourselves. We must not allow people from Brazil, Netherlands and Germany to come and objectify us," said Nxesi.
Filmmakers have hit out at critics who have said the film was made by foreigners, explaining that many people who were involved in the making of the film, including the writers, are South African.
Nxesi did not answer questions on why the shirts were not locally produced and instead made in China.
"That is a different issue. We will be selling these shirts nationally because people like the brand and what it represents."
The case is ongoing.