What are these yellow wristbands?

I’ve been seeing a lot of these yellow bracelets being worn lately. They might be plastic or rubber, and are probably the width of a thick rubber band. I think some words are engraved in them. I’ve seen people all over wearing them- I just came home from Massachusetts where I saw some, and today I saw a guy wearing one.

I suspect this is either a political statement (considering the upcomming election) or a fashion statement.

Thanks.

Is it a “Live Strong” bracelet? Lance Armstrong’s foundation is selling them to raise money for cancer research.

You can buy one at www.livestrong.org .

That looks right! And it would make sense that I’ve just noticed these popping up because the Tour de France was just a few weeks ago. How long has he been promoting this?