I’m 5’2 and 110lbs I bought this set in an XS The arms are a tad bit tight but I think it’s just because I have bigger arms. The shorts fit perfectly. A heads up to anyone who buys this, there is a zipper on the back of the jacket which i didn’t notice until i struggled to put it on. If you’re small chested like me (34B for reference) you may need boob tape to hold it in place. Other than that it’s super cute and sexy. I can’t wait to wear it out!

I'm 5'9, 150 lbs, 38 DD, and a true medium. The shorts fit pretty good. I'm all legs so the shorts are super short on me, but that's how I like it. They shaped the booty nicely. The blazer, on the other hand, is waaaaayyy too small. The arms are super tight. I mean you can't move your arms tight. It took forever to take the blazer off. The blazer doesn't cover my nipples at all. I would recommend sizing up ESPECIALLY if you have a large bust.