As you would expect from a yarn called "Bamboo Ewe" it is Bamboo and Wool.
Tomorrow, I will attempt to answer April's question:
Hi Ellen, this is not really about your post, but I have a question for you. How much figuring out do you do for a design before it is accepted for publishing? Do you complete a finished item first? Just a swatch? Schematics and/or charts? Just a sketch? Thanks in advance!