Nike Mercurial Superfly 8 Elite CR7 Firm Ground Cleats As an unstoppable force on the field, Cristiano Ronaldo attributes his expertise to his positive mindset. The Nike Mercurial Superfly 8 Elite CR7 FG features a repeating bolt pattern that lets you bring your own spark of positivity to the field. Features 360-degree Flyknit construction wraps your foot for a sock-like fit.