Dyed with acid dyes. Incredibly soft 100% worsted weight wool yarn is from our own sheep. They are bred especially for their soft fiber, are Romney, Finn, Corriedale and Border Leicester crosses. Animals are raised sustainably on our small, women-run farm in western Maine. The fiber is cleaned on-site using labor-intensive processes rather than harsh chemicals, and then spun at a Maine mill. . Because our yarns are hand-dyed slight variations in color can be expected. Most 200-yard skeins of yarn include a picture of the sheep who grew the wool. By choosing to knit with our yarn, you support the human and sheep community at A Wrinkle in Thyme Farm who are producing beautiful wool from happy sheep.