When Nike Inc. revealed on Sept. 3 that it had brought on former National Football League quarterback Colin Kaepernick, who began kneeling during the national anthem to protest racial and social injustice, to star in its 30th anniversary “Just Do It” campaign, the brand took an immediate hit to its reputation amid calls for a boycott of Nike products, according to Morning Consult Brand Intelligence data. But since then, the brand has seen consumer sentiment recovering.