These are the special wigs.  This one is hand sewn into a stretchy 9" wig cap and wil fit so many dolls.  Dollstown, Smart Doll Kaye Wiggs dolls all wear a 9" stretchy well.  Zoe by Moppie Dolls is modeling.  

The color is a very dark brown, almost black with sun kissed tips.  As always, this fiber has a few grey hairs mixed in, but the overall look is black/brown.  The grey hairs on this one almost seem to just shine as highlights.