The Corsair is the first I bought. It is fairly well designed overall: nevertheless attention to large sewing marks and dotted effect on the skin when removing (we made sexier). Slight downside, there is no ball at the inner thighs, I guess this is the seam that does it. It's a shame because it is a strategic place for me! I do a 36 and it suits me (I took an S / M). It also goes to my roommate that is purchased the same (but too tight on the calves, she had to battle). For sheathing effect: the Corsair is an effect "ski bum" so to speak. But since I was little, sewing passes over my buttock and cut in half instead of the back. For effects on the silhouette: I wear all day and I workout three times a week. Note the improvement in the quality of the skin (more grainy effect on the buttocks in particular) and perhaps a slight thinning, but I have not taken specific measures, so I can not really say. I use it for 10 days. I recommend, if you do not expect dramatic effects.
