I have always said, if you can move in a pair of jeans, that is one comfortable pair of jeans. Ok, I have not always said that, but it sounds logical doesn’t it? Or maybe if you know you are going to be photographed for every “move” you make (including, um, one with a moving van) you will pick out a cute – yet, comfortable – pair of jeans to wear.
Lastly, I am guessing it is a dusty job and she & Austin are not going all cowboy outlaw. But, well, that’s just me.