Real Madrid footballer Vinicius Jr is making headlines these days for a notable physical change, though not so evident at first glance. What’s new about his face that makes him more attractive? His chin. It’s undeniable. And it’s because a square jaw is a cultural archetype of masculinity, not a trend in aesthetic medicine. The genealogy is recognizable from Superman and Captain Trueno comics, continuing with Batman or Captain America: a strong jaw, defined cheekbones, and even a dimpled chin set an aesthetic standard. In classic cinema, Clark Gable, John Wayne, Gregory Peck, and Charlton Heston embodied it. There is, therefore, a connection between jaw, power, and masculinity: a square face visually functions as a kind of armor, making the character appear stronger, more determined, dominant, or resilient.