Tightie-whities, bras, panties, nightgowns, swimwear, and boxer shorts were all on display Saturday as thousands ran through Salt Lake City to protest what they called the “uptight” laws of Utah, the AP reports.

People wait for the start of the run at the Gallivan Center in Salt Lake City. (Djamila Grossman/AP)

Utah Undie Run organizer Nate Porter says the event was organized to draw attention to the conservative nature of the state’s politics. Some people scrawled messages of support for same-sex marriage on their bodies.

The run began in downtown Salt Lake City, a city home to the Mormon church, a vocal opponent of same-sex marriage, and circled past the state Capitol building about a mile away.

In Feburary, 500 people ran through Washington in their undies to raise money for charity.

Watch video of the Utah Undie Run:

More photos from Salt Lake City below:

A woman stands with a slogan on her body as she waits to run in her underwear. (Djamila Grossman/AP)