The Portugal captain, whose nation failed to progress into the knockout rounds at the World Cup in Brazil, has already lent his name to an underwear range.
Now, the Ballon d'Or winner has teamed up with designer Richard Chai to create a new shirt collection, which, according to the official website, includes 'stylish options as well as more formal pieces with a focus on tailoring, quality and fit.'
Ronaldo told the site: "Part of my belief is always being the best that you can be. The perfect fitting shirt gives a man the confidence to become the best version of himself possible."
The 29-year-old ended last season as a Copa del Rey and Champions League winner with Real Madrid.