Hmm... these are the ones I have - and they are petites:
http://www1.macys.com/catalog/.....ryID=45200
http://www1.macys.com/catalog/.....ryID=45200
The fit of these two are identical, but the fabric is slightly different. Both feel like you are wearing sweats. I seriously worry that they are so comfy, I will overeat this winter.
Otherwise, the gray fabric is a bit thicker; both seem warm though. I can tell you the gray doesn't bag out - even after 12 hours X 2 in an airplane. Can't say for the black, since I only rec'd them in the mail today.
I don't know why the pair you posted are $10 more. The rise is 1/2 inch longer too. They certainly look the same, and the fabric content is the same.
At any rate, if you take a size 6, scoop up the ankle length pair AND invest in the longer length ones too. I have a feeling these pants are going to turn out to be the "best buys" for me this season. They are so flattering and comfortable.
