I posted before about these Zaggora hotpants.
The only criticism that I have of them is that they work so well that you soon need to go down a size. I am not sure if XS has been newly added to the range as I don't remember seeing it before, but within about 4 weeks I went from the small being snug to needing to downsize.
The effect is immediate and only maintained by continuing to wear them, I gave my pair away to a friend as I wanted her to try them and I have noticed that by not wearing them daily, little pockets of fat are reappearing around the top of my thighs which is one of the areas that I put on weight first.
I was sent my pair free to try them so felt it only fair that they should be sampled by other people as they are genuinely effective, even though it goes against all of my ideals of exercise and healthy eating being the only way to get results.