I bought this to shrink my belly and provide back support post partum. It was so large that I ended up using it as a support girdle when I was pushing 10 months and huge. I ordered a Medium; the sizing is incredibly generous.

I put it on when I left the birth center - only 4 hours after having my baby. It helped a lot with that initial shift where my organs were all relocating and dropping back into place. I liked having all of my vitals tucked into my body cavity where they belonged.

In the following days, it was nice to have some support while my muscles healed a little. It still fit, but I was wrapping it up really tight at this point. I had no issue with rolling, and the velcro holds very well.

It provided no cosmetic assistance as far as sucking in my gut. Perhaps it made the gut appear smoother, but that is all. It isn't shapewear, and there is no way to make it tight enough to provide a significant binding effect. I went out to eat with my family the following day, and I still looked quite pregnant in spite of the waist binder.

I don't think it hastened the disappearance of my gut at all. I guess it was nice to have for that last miserable week of pregnancy through the first week of postpartum.