Some Hillary Clinton supporters will wear pantsuits Election Day in a tribute to the Democratic candidate's signature style.

Pantsuit Nation, as the group calls itself, began as a private Facebook group as a way for women to express their solidarity and admiration for Clinton. It spiraled into a social movement over the weekend, with more than 1 million members on Facebook, Instagram and Twitter.

The supporters use the hashtag #PantsuitNation to share stories of meeting Clinton, their struggles being surrounded by Donald Trump fans and their emotional reflections on the first female major party presidential candidate.

"This group has made me so happy. Happy to know how many people actually want to change the world. Happy to know that there's so many Hillary supporters like me," one member of the private group wrote.

Libby Chamberlain of Maine started the group after the final presidential debate after a conversation with a friend. They view pantsuit-clad women as challengers of traditional gender roles because of the traditionally masculine stigma of the suits, she told CNN via email.

"We talked about how beautifully and stoically Hillary embodies women's fight for equality, and how the pantsuit is an emblem of that struggle," she said. "It's a symbol that might be lost on younger women, and so I wanted to do something to re-appropriate that symbol and everything that it means to me as a feminist and Clinton supporter."

Beyonce and her backup dancers donned pantsuits for her concert in support of Hillary Clinton on Nov. 4, 2016. (Duane Prokop/Getty Images)

The feminist movement even launched a website , encouraging Clinton supporters to wear pantsuits to the polls on Tuesday and providing a space for people to gush over the candidate without fear of reprisal.

"Our members are relieved to find a place where they can support their candidate without fear of anger and attacks," Chamberlain told CNN. "For many, this group has become a safe space to share their stories and support one another; we're hoping to continue this safe space post election."

Even Beyoncé and her backup dancers joined the movement, taking the stage in pantsuits at a Clinton rally performance Friday in Cleveland.