The black T-shirt spells it out in capital letters: “Everyone Watches Women’s Sports.”In the past few months, the message has been hard to miss. Dawn Staley, the coach of the University of South Carolina’s women’s basketball team, kicked off a social media frenzy when she wore the shirt for a pregame interview in January. The comedian and actor Jason Sudeikis wore a version with yellow lettering to the women’s N.C.A.A. Jimmy Fallon got one on “The Tonight Show” as a gift from the recently retired W.N.B.A. The shirt, which was created by a company co-founded by Ms. Bird, has become an unofficial uniform as viewership of women’s basketball has soared, and women’s sports in general have seen greater momentum.

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Persons: Dawn Staley, Jason Sudeikis, Jimmy Fallon, Sue Bird, Bird, Megan Ramos, ”, Ramos, Alex Morgan, Simone Manuel, Chloe Kim Organizations: ”, University of South, “ Shipping, Togethxr