This top runs a wee bit small-- those of us who are used to ordering a large and getting something that we'd consider a medium at best know what I'm talking about. I wear about a size 16 on top and am very athletic with broad shoulders, so the largest size fits me, but very snugly. That said, I love the lime green color and the texture of the fabric is wonderful, so I'm hanging onto this even if it's a little tight. Unlike other athletic gear that can tend to ride up, it does stay put when working out, and even tight, it's flattering. Make sure to order the largest size you think you could need, but otherwise, I'd recommend this.