Wool Fibre Merino - ScouredORGANIC YARN Wool is a fun, yet tricky fibre to work with and it can be hard to find the right yarn for your projects. Most wool yarns are made from low quality fibers or blended with synthetics. This makes them scratchy and hard to work with, which makes knitting frustrating for beginners. If you've ever tried working with wool, you know that it is a very difficult material to use. It's not easy to dye or spin, and it often shrinks when washed.