Yes it is Fred. It is most commonly marketed by a company that goes by the name of BowTyer. And there is actually a great book titled Modern Fur Flies that gives a great indepth instruction on how to choose arctic fox and how to tie with it.
...and some of the flies that I am sending in for the swap is actually tied with the BowTyer material.
I will look around for you and see if I can find a website.
Ryan S. Petzold
aka Sparkey and/or Special