I love these 6M pants fitting like a 4M everywhere EXCEPT the waistband, as I generally wear a 4M.  Sure, I can button the waistband, but I will just be comfortable and use an extender.  I heard Carhartt pulled these pants from stores to improve the fit.  I bet that means bigger hips, which means I won't be buying them again, since I am built straight through the hips and thighs as described.  I doubt the waistband will be enlarged, which is all I need improved.  Perhaps Carhartt should simply use 2% spandex in the waistband only?  The 1% spandex in the pants is great because the pants don't loosen up a full size like many pants do.