I’m 5’7 160lbs and I usually wear a Medium depending on the material of the clothing but based of the reviews and it being a bodysuit I wanted to be comfortable not only on the shoulder areas but also the middle part being able to snap it on with it being too tight, so I ordered a large and I’m so happy I did, it fits a perfect kind of snug not uncomfortable, the bodysuit hugs my curves and yes the strings are annoying but I cut them short on my arms so they don’t get caught to anything as well as my sides. I cannot wait to wear just need the right shoes for it. Definitely this is why I always purchase from Fashion Nova ♥️