TUCSON (KGUN9-TV)-- An Australian model has started a massive debate over what the definition of 'plus size' really is. Robyn Lawley, 25, is a plus sized model who has been in magazines like Vogue, Elle and Cosmo. She has also launched her own plus-sized swimwear line where all the suits begin at size 10. To promote the brand, Lawley posted this picture to Instagram. She tagged it as unretouched and makeup free. And while the photo has gotten thousands of likes, many people are wondering why someone with Lawley's body is considered 'plus size' at all!