Unmanly men are offended by the slogan selected by organizers of Bolder Boulder, a ten kilometer run held annually since 1979.

The Daily Camera reports:

Out Boulder, an LGBTQ advocacy group, has launched an online petition seeking to pressure organizers of the Bolder Boulder to drop their slogan “Sea Level is for Sissies” because they say the word “sissies” is derogatory.

But race organizers say they have no plans to retire the slogan.

The Change.org petition was posted Wednesday by Out Boulder’s executive director, Mardi Moore, and by the evening it had 25 signatures.

“The word is used to (demean) traits that are problematically and stereotypically associated with women,” the petition reads. “Traits that all genders have but are not valued because they are associated with women. … All genders express emotions and they should be embraced when they do.

“It’s past due that the Bolder Boulder retire this slogan. Make your voice heard.”

Moore said the slogan is “harmful” and leads to further misunderstanding about gender.

“This has been a longstanding issue for us in the LGBT community,” Moore said. “When somebody calls you a sissy, it is not positive. … That word continues the incorrect thinking that having emotions or expressing something in a stereotypically female way is somehow wrong in society.”

Moore said she was motivated to put up the petition after a letter to the editor by Debbie Ramirez appeared in the Daily Camera on April 21 calling the T-shirt “highly offensive.”

“I am a women who runs, rock climbs and performs well athletically. I also have the traits associated with someone who is called a sissy,” Ramirez wrote. “I cry, I get hurt and I express my emotions. If this is what a sissy is, I am proud to be a sissy and would never wear a T-shirt that does not value these traits in all genders.”

If you live in Tramin/Termino in the South Tyrol, you had better beware of falling rocks.

Gizmodo has more pictures.