I owe Egi a review after this one. 5’6, 140 lbs- usually between S and M. Ordered my first coz’e set in a small (on accident- when the collection dropped bc I was struggling with the app and site. I was actually planning on returning the duplicate, but now my secret Santa and I have matching lounge sets… LOL… Merry Christmas to us)! No but seriously, the fit is perfect and it’s SO comfortable. I could’ve definitely gone with a medium for a loser fit, but this hugs everything in all the right spots. I just ordered my second in ivory… with the robe this time! Do yourself a favor and just get it, you won’t regret it. Literally feels like a smooth cloud on your skin.