Canelo Álvarez has red hair because of his genetic heritage, with speculation that he may have an Irish grandfather somewhere in his ancestry. His distinctive red hair and light skin earned him the nickname "Canelo," which means "cinnamon" in Spanish, a common nickname for people with red hair. This nickname was given to him by his longtime trainer Jose "Chepo" Reynoso, who wanted Canelo to own and embrace his unique look, which set him apart from other Mexican fighters. Despite being bullied as a child for his red hair, Canelo has turned it into a powerful part of his identity and brand in boxing.