I am trying to figure out something similar to this. I want to fix the saggy bottom that jeans create. Once I was told that placing darts right at the bottom of the bum will help- I am currently trying to reconfirm and figure out the exact placement...So to answer your question- Buy stretch Denim and then maybe place darts off the zipper? or maybe darts on the crothch hem that point up?
heidi
September 2010