Had to size up bc xs was sold out but it still worked I would say fits true to size! I would say if you have a large chest size up though! I’m 5’6 with 25in waist and the bottoms were big but the top ran a little small

If you don’t have big boobs it isn’t as open up top as the pic. Def recommend sizing down if you’re in between 2 sizes, as it has a lot of stretch.