Answer:
The sample sizes that are available for the models to wear would be like 0 or 00. Designers demand that the models be thin because it is seen as being more attractive in high fashion. In order to stay that thin, the girls go to such lengths as to throw up anything they eat or starve themselves to lose the pounds. This fad was started by the model Twiggy, who became a favorite and was voted "The Face of 1966"