If you really gave two nipples about women's equality, then you'd take off your shirt already.
In conjunction with Women's Equality Day, women and fans of women will descend on Dolores park sans shirts on Sunday at noon for Go Topless Day, because if men can walk around topless, then damn it women can, too. (Note to prolific nudists: This bare-chested bash is permitted).
But this isn't totally about getting rid of those bikini top tan lines -- it's about getting rid of inequality.
Go Topless Day always falls on the Sunday closest to Women's Equality Day, which is Aug 26. It was that day in 1920 that women (aka people with boobs) earned their right to vote on the basis of Gender Equality. In 1971, the U.S Congress declared Aug. 26 Women's Equality Day, and the president is summoned to celebrate this day each year.
If you were planning to skip town this weekend, but would still like to take your shirt off to support women's rights, check out this national boob map for topless events near you. The "censored" boobs indicate it's not yet legal for women to walk around topless, but that's not stopping anyone -- it'll just be a protest as opposed to a rally. If you're really concerned about what not to wear in which state, read up on the topless laws for each state.
To make this day even more special, event organizers encourage men to cover their chests with bras or bikini tops. Should be a great day for photos.