so I wear a size large which is a comfortable/ snug fit for me for bottoms and my top size is medium for snug fit and large for a comfortable fit. I decided to buy a large because normally lingerie is alil tight and large would’ve been perfect but this set is actually pretty stretchy which I didn’t expect so I actually could have went with a medium and still got a great fit especially since this piece is mostly top and a thong bottom. but overall I this this lingerie is tooo cutteee omg