When should you use felting yarns?
Felting yarns are specifically designed for felting. If you use our slipper pattern with our felting yarn, you are going to end up with felted slippers that will match your expectations and the size you are after.
Obviously, felting depends on both the quality of the yarn and your washing machine, so you may have to adjust your settings so that it works with your machine (for more information on how to do this, please read my blog entry on trouble-shooting felting).
If you use a yarn that is thicker or thinner, you may not end up with the size you wanted.
Sometimes, size is not really the main factor. You may want to make a felted bag, for example, or a felted cushion cover, or other felted items where you are happy to experiment with different yarns, colours and sizes.