This is 100% yak down fiber. It has been carded into sliver, drawn an a drawing frame and drafted on the roving frame.
From:
Marcel Deshaies (marcel)
(Wed 08 Jul 2009 16:39:07 MST)
Here we have true roving straight off the roving frame. Many would call it "pencil" roving. This machine is a necessary evil in order to facilitate full draft for worsted yarns.