This site sells the yarn and explains the content.
Not sure what yarn can be used instead.
http://www.herrschners.com/product.aspx?sku=012059P%20&utm_source=google&utm_medium=cpc&keyword=g+bernat+pipsqueak+yarn+e&gclid=CK6y3_2g5K4CFYNx4AodUklCWQ
Hope this helps and good luck.

Thanks jjknitter. I checked with Herrschners also.
Before Bernat put pipsqueak on the market, they released the yarn in a variety of the most beautiful colours. Now they have limited it to pink, blue, white and a few varigated colours. I'm looking for the colours!
Thank you.

Here is a site for Spinrite yarn which is the new owner
of Bernat yarn--
http://www.bernat.com/
At end of page there is "Contact Us" and maybe they
could help you. Wishing you the best of luck.

Thanks so much!