I had recently gained some weight, so having had a pair of these Lee Perfect Fit Jeans before, I intentionally ordered a size up (I ordered size 8, which is my regular size in other brands of jeans, but not in Lee Perfect Fit).  I was hoping that these size 8 jeans would give be a little less tight and I also wanted the extra inseam length.  They do fit after washing a drying on normal settings, but they tend to stretch out during wear, so I now wish I had purchased a size 6.  They get so loose that I need to belt them to keep them up.