I'm a sz 12-14 depends on the time of the month lol. My behind and thighs are thick. I have big arms too. The leggings fit perfectly even over everything and my lil fupa. The bodysuit is VERY stretchy. The sweater, bc I had to get an XL was way to big for me in the chest area. For ref bra size is 38C. Overall very cute set and I will rock it. Hope this helps.