"I think he's amazing, but he's the first to say 'I can improve'. He says he can get better and will do his part, but he needs us to do ours too," global vice-president for Nike Football Footwear Max Blau told Goal.com.
He revealed that there is more to it than just style for the Ballon d'Or winner.
"That puts a lot of pressure on us. We have to come up with something to help him. That's how we came up with the new Mercurial Superfly [the boots Ronaldo currently wears].
"Every player has their favourite colour, and it's been scientifically proven that the colour of the boots activates chemicals in the player's mind."
Blau claimed that confidence is the main influencer in the boot to performance formula
"When you feel better, you play better. The main reason of the colour is to give confidence. For example, Cristiano Ronaldo doesn't like to wear black boots because he says black looks slow and he wants to feel fast."