A federal appeals court ruled Monday that a Pennsylvania school district cannot ban "I (heart) Boobies!" bracelets, rejecting the district's claim that the slogan _ designed to promote breast cancer awareness among young people _ is lewd.

The 3rd U.S. Circuit Court of Appeals also concluded that school officials didn't prove the bracelets were disruptive.

"Because the bracelets here are not plainly lewd and because they comment on a social issue, they may not be categorically banned," Judge D. Brooks Smith wrote in the 9-5 decision.

The ruling is a victory for two Easton Area School District girls who challenged the school rule in 2010 with help from the American Civil Liberties Union. Easton is one of several school districts around the country to ban the bracelets, which are distributed by the nonprofit Keep A Breast Foundation of Carlsbad, Calif.

ACLU lawyer Mary Catherine Roper said the ruling supports the rights of students to discuss important topics.