These shirts are a titch controversial. If you are going to wear it I want you to know what you are supporting. By wearing this shirt you will not only have donated to a good cause, but you will be creating awareness of a different kind.
The pink movement has good intentions and is a huge money maker, but the way the funds are distributed are questionable at best. Organizations such as Susan G. Komen Foundation say they are "fighting for a cure" yet use the majority of their funds on salaries, prevention and awareness. Less than 10% is used for research to help extend lives of those that prevention does not help.