There was a great post about this very topic on Salon's Broadsheet. My perspective is that she's on vacation, and she is going or was hiking. Yes, she's the first lady, but I don't think that means she needs to be a fashion plate at every moment of every day. She's dressed in a similar style to her girls, and that makes sense to me. That said, I'm pretty biased in her favor. But, honestly, they're shorts with hiking boots, which is fairly appropriate vacation wear for the Grand Canyon - she's not wearing thigh high boots with fishnets and a mini-skirt, or flannel pajamas. She looks a lot like most of the moms visiting the Grand Canyon look, I'm willing to bet.
