The Invisible Tummy Trimmer uses a lightweight, stretchy fabric (advertisers refer to it as a "miracle elasta-slim weave") with a reinforced front panel to slim the midriff front and back. There are no ribs or bones to make it uncomfortable to wear. The ads say it will make a woman "look 10 pounds thinner, instantly."
However, we didn't find any reviewers who found this claim to be realistic. The most positive reviewers say the Invisible Tummy Trimmer is reasonably easy to put on, and that it feels light and breathable. However, it provides only a minor slimming effect, at best just smoothing out rolls of fat to some degree. At ABC's "Good Morning America," reviewer Becky Worley concedes that it does have a use, calling it a "muffin top trimmer" for smoothing a roll of fat when worn on top of -- not underneath -- tight fitting jeans.ProsSeamless, Smoothes out body fat somewhat, Breathable fabricConsRides up and down, Doesn't flatten tummy much, Often shows rolls of fat at top and bottom, Doesn't make you look 10 pounds thinner