This is the second sweater that I have frogged for its yarn. It is a cotton and ramie blend yarn. The yarn has been used to make a bath mat and a yoga mat bag.
I was inspired by an article in Interweave Knits by Ashley Martineau about unravelling (or frogging) sweaters from thrift stores to re-use the yarn. A great tutorial can be found at her website, http://neauveau.com/recycledyarn.html. She also creates wool yarns as well as hand dyeing recycled yarn.