Unfortunately these didn't really work out for me.

I followed my measurements and the sizing descriptions, as well as recommendations of other people (I'm about an AU14 in bottoms). But I found these weren't the miracle cure I kept hearing they were. While they did pretty much stop chafing and sweating issues, they weren't comfortable, rolled and stretched a lot, and rode up quite frequently as soon as I sat down.

I suspect these might work better for people who's body shape is a bit more even. I have a really dramatic curve between my hips and my waist, and I noticed these tended to ride up quite a lot around that area, causing them then to get dragged higher and higher up my legs.  In an emergency they would do, and I suspect they may work quite well for other people. But for me they just weren't what I was hoping for.