I love these boots, and want to get them in gray, too.

I'm usually a size 6, but thought I'd order the 5, since the other reviewers suggested to. I have UGGs, too, and the 6 look big on me.
The 5 are very snug, but maybe they will stretch out.

The shaft is loose, and when I tried to tighten the opening, the leather string broke! :-( I sewed the piece back on. So, be careful, or lubricate it with some oil before tying it.