this contest was to raise awareness in relation to Breast Cancer. The “Pink of October” movement was born quite a few years ago and spread worldwide, up to the point that many consider that October is the month to show support for this good cause, and chose pink as their color (in the same way we did with our contest).
Why pink? because, as you say, pink is normally related to women, and although men do suffer from this terrible disease, this particular type of cancer attacks women more than men by a high percentage.
