Our black hat has been expertly knitted in Umbria, Italy from extra fine merino wool which is treated withTeflon®. The Teflon® treatment surrounds each fibre with an invisible barrier: the weave withstands dry dirt and the absorption of liquid substances, whether water or oil based. Yarns that have been given this special permanent treatment can be considered water repellent to all effects. Fibres treated in this way look perfect and offer an outstandingly high performance, ensuring it can be worn for years to come.