I have NurDer Classic ordered, washed and everything was good. Has retained the shape and also looked like prior to washing. Then I tried on him. Without additional clothing: fits perfectly, does not slip during movement, all is well. I thought ....! Then I put on my pants and already it was over !!! The legs of the shorts slid equal when tightening high ... Well, I thought, is determined by the fabric of the pants with have been pushed and pulled her back down evenly. Then a bit of running back and forth and ZACK: again hiked ... Do not misunderstand, the shorts are still comfortable ... But sadly expresses's groin but a bit ... Because of this, there's only two stars because my cheap suit from a discount store with a similar name as penny even better. They are not made of cotton, but better overall wear .... For the price difference, I better stay where!