After the show, Ambrosio told HollywoodLife.com that she thinks "most women relate more to models that have healthy curves, which are also very sexy and feminine."
According to HollywoodLife.com, the model swap came in response to the controversy over thin models on the runways of New York Fashion Week earlier in February. In New York, the Council of Fashion Designers of America (CFDA) held a discussion on the idea of changing the sample size from a size zero to a size four, allowing more curvateous women to participate in high fashion shows. Despite the discussion, the sample size wasn't changed.
There's a sad irony in that rule. Though models must fit into a size zero to walk the runway, the CFDA stipulates that models who are identified as having an eating disorder must seek professional treatment and stop modeling until that professional clears them for the industry again.
The discussion of too thin models began in 2006, when Brazilian model Ana Carolina Reston died of a generalized infection due to anorexia. Her death caused the organizers of Madrid Fashion Week to institute a minimum Body Mass Index (BMI) of 18. According to The Associated Press, at the time of Reston's death, she weighed 88 lbs., which put her BMI at 13.4.
Earlier this year, it seemed the scales in the skinny vs. curvy debate tipped in the direction of the latter. V magazine featured only plus-size models in its January 2010 issue; New York Magazine put curvy-and-couldn't-care-less-about-it "Mad Men" star Christina Hendricks on its spring fashion cover.
Perhaps not caring is the new black (as the fashion world says), at least on a personal level. Ambrosio declined ABCNews.com's requests to comment for this story. And on her blog, Rocha declared she could give a damn what anyone thinks of her figure.
"You know what, I've stopped caring," Rocha said. "If I want a hamburger, I'm going to have one. No 21-year-old should be worrying about whether she fits a sample size. ... I don't do nudes, I don't do semi-nudes, I don't do cigarette shots. It took me a long time in the business to realise I didn't have to do everything people told me I should if I wanted a career."