We were especially pleased when we sourced this olive oil soap, ideally suited for wet felting. It has zero additives or perfumes and so won't leave anything behind in your finished piece when rinsed through, nor does it "foam up" in the same way as washing powders and liquids tend to. Instead it simply lubricates the fibres that you're working on with the minimum of fuss and does it's job well.
The larger bar is especially good value for money. It's easy to shave pieces off with a knife and mix them with warm water, creating the perfect medium for working with.