I would think, based on the fact my daughter now wears a 6 and once wore a 0 and a 2, before she had a medical situation which (thyroid cancer) which has caused her to gain weight on her thyroid medication but before she knew she had cancer, she was a 0 and a 2, but she was very small. She is tall but I think the only one as thin as she, would be Amy Stran.She was so thin, her ribs poked out and I didn't like to hug her for fear I was going to break a bone.