Who Bikes in Heels?

OK, so this story out of Manchester,England (warning: page contains nudity) is funny for a couple of reasons.

First, this nude bike ride was to draw attention to global warming- but it was unseasonably cold. HeHe.

Second (and you have to link to the article and look at the photo to get this) , why is the nekkid woman wearing thigh high spike heeled boots? Who bikes in heels???