A new ad from the XX-XY Athletics brand titled "Real Girls Rock" in support of women's sports garnered over six million views across X over the week.

"You either have XX or XY chromosomes," Rep. Nancy Mace, R-S.C., wrote Feb. 20 on X. "Those are the options." Most commonly, a person is born with two X chromosomes (female) or an X and a Y (male).