The scarves and hats Jody makes are from superfine merino wool. The jackets and vests are from a longer staple wool which takes a lot longer to felt, but makes a garment which is hard wearing and comfortable. Boiled wool or fulled wool is material that has been knitted first, then shrunk by washing with hot water, soap and agitation. It is similar to felting because it allows the protein scales on the surface of the wool to interlock, but is also unique because the resulting fabric has a different structure and usually more ability to drape. It makes garments that are naturally warm, breathable and durable.