Seven costumes over five films, and the question of who made each one is the whole arc of the character.
Read the set by its makers rather than its features. He builds the first one himself because nobody offers him anything. Then a billionaire builds him two, with the functions locked. Then an intelligence agency builds him one that is trying to hide him. Then he builds one for himself with borrowed tools. Then he builds one with nothing at all.
That sequence is the story: a boy who wants to be given permission, learning that the permission was never the point.
Show detailsWhat the suits are doing in the plot
Twice, a film takes a suit away from him, and both times it is the emotional centre rather than a setback. The suit is how the adults in his life express approval, so removing it is how they express its withdrawal.
The last one is the only suit in the set that nobody can take, because nobody knows he has it.