Airlines Bans Girls Wearing Leggings From Plane

"She's forcing them to change or put dresses on over leggings or they can't board," Shannon Watts, who was waiting at a gate at Denver International Airport, tweeted. "Since when does @united police women's clothing?"

Watts, founder of the Moms Demand Action campaign, said the female gate agent turned away two young women for wearing leggings because they didn't have anything to change into. A third girl was let on to the flight because she had a dress in her bag. Watts claimed one of the girls was as young as 10, although it was not confirmed.

According to a contract done by the airline, the airline can refuse to let a passenger board if he or she is "barefoot or not properly clothed." It did not specify what "properly clothed" meant. There is also a specific section pertaining to pass travelers, who are required to follow a specific dress code that includes a ban on spandex. The girls who were turned away were standby pass riders, or people traveling as relatives of a United employee.