This lovely yarn is certified organic and the company is a member of the Organic Trade Assosiation. These people take their organic certification seriously. Here's what they have to say:

"O~Wool™ Balance is a blend of 50% merino wool and 50% cotton with an earthy look and a soft hand. With the flexibility of wool and the coolness of cotton, this yarn is perfect for light sweaters, cool-weather wraps and clothing for children. O~Wool™ Balance is made from 100% certified organic fibers and processed in accordance with the Organic Trade Association’s Fiber Processing Standards. Dyeing the blended fibers gives the yarn a subtle tweed-like effect, allowing knitters to make beautiful garments while supporting a sustainable environment. O-Wool™ uses no harsh chemicals in processing making it durable, long lasting and a well-wearing fiber."

We agree!