A 1-inch thick rubber bracelet has caused quite a stir in schools across the country, despite the positive message its wearers believe it sends.

The bracelets say "I [heart] Boobies" and are part of a nationwide campaign launched several months ago to make young people more aware of breast cancer.

The Clovis Unified School District in central California is one of the latest to ban the bracelets. District spokeswoman Kelly Avants told ABCNews.com they violate the school's dress code.

"We have an existing dress code that specifically states clothing, jewelry or accessories with sexually suggestive language or images is not allowed at school, said Avants. A number of other school districts require students to flip the bracelets inside out so the word "boobies" is not visible.

Despite some schools' cracking down on the bracelets, students have been vocal about the novelty items on blogs and other sites such as Facebook, saying they want to wear them in support of what they believe is a good cause.

Read more here from ABC news.