XX-XY Athletics, an apparel company focused on protecting women's sports, launched a provocative advertisement on 'XX Day' (October 10) challenging Nike to take a stand against transgender athletes competing in female sports. The ad features young girls and women questioning Nike's silence despite its claims of supporting women, emphasizing the perceived threat posed by biological males in women's sports. Jennifer Sey, founder of XX-XY, expressed disappointment in Nike's lack of action, noting that as more males enter women's sports, opportunities and safety for girls are compromised. The ad has garnered attention on social media, particularly among right-leaning figures and organizations advocating for women's rights in sports. Critics argue that Nike's previous partnerships with transgender individuals contradict its professed support for women. The ongoing debate highlights the tension surrounding gender identity in sports and the calls for major brands to take a definitive stance.