I ordered the brown and pink in size small. I am kind of muscular so my upper back and chest are a little broad. I wear size medium most of the time. I decided to go with a small because I was worried about the off-shoulder part being too loose. Very happy with my choice. It's stretchy and fitted, not tight. It's kind of a sexy look, very in love with these tops. I have a shoulder tattoo I like to partially cover and this is perfect for that.