The tank isn't long enough. It scrunches up to your belly button. I bought my size which was a medium, but even though I probably have an average torso, I found it to be too short. And I also thought it would really tighten things up in the belly region, but it was just like wearing a regular tank top with the thickness. If I bought a small, it would just be shorter in the torso but tighter for my belly. Oh well, I didn't need it, but I just thought I'd try it to see what the hype was all about.