I've had an intestinal overgrowth and while on antibiotics my flatulence increased and was terrible. So, I thought I'd try these. First of all, they really work. Second, they run very small as per other reviewers. Knowing this I ordered the large and I usually wear a small. They fit nicely and as per another reviewer, I wear them over regular cotton undies. I just wish that they sat a little bit higher on the hips. I have a small waist and hips, so they sit halfway on my hip bone. Other than that, great product. Has helped my confidence when I am around other people. Thank you.

Although they are hip huggers, I would like them to be slightly higher, since they sit quite low. But they're made very well.

The underwear works great! Just as it supposed to. I am happy with that. The sizing, however, I believe is a bit off. I usually wear size small or medium so I ordered size medium and it was extremely extremely small for me. I would have to order a large even though that’s not my usual size now I’m not sure if they’re doing it on purpose in order for underwear to stay real tight I don’t know. But they do get the job done if you know what I mean. :)

These work pretty dang well. You do need to read the instructions ie there’s a suggested position while seated and standing when passing gas. I’m planning on ordering more to have 7 days of undies available. Thanks for this ingenious invention!

As a sufferer of colitis, I was desperate. This underwear is literally the only way I can be around other people without constant fear.

The filter is comfortable enough but the sizing runs a tad small. I also wish they were made up of more cotton material (for us girlies) and I wish they had a high-waisted style.