Two major problems: size (provide a size smaller) and tasks remain (I have for almost 4 years). Initially they are very beautiful, they inevitably get dirty quickly and it shows since it is a light color. The problem is that I have found nothing to do from the tasks (and it's not for lack of trying everything) result they became well for troubleshooting or go to the country but not for anything else, and c ' unfortunately. Regarding the announced benefits, I saw the difference. At the beginning a lot of terrible back but I did not let it out, resulting in reduced recurrent back problems, a skin firming the thighs (do not expect miracles either). They are super comfortable to wear. So I plan to buy back the same kind of pattern but dark :)