unfavorable section

I was looking for just for the sport pants that cover by longer leg approaches the whole Po. Unfortunately, the parts take no account of the fact that the Po now times more volume than the front. So the panties slipped back but centered on the buttocks and on the long leg remained on the back nothing left. And I have a rather flat Po, what is that to be in women with a little more voluptuous rump ... Sooner or later, the fabric then slides into the step, I felt uncomfortable. Otherwise, the material is very soft and elastic and certainly contributes less than other underwear.