Environmentally friendly detergent for woolen clothes Wool Wash from Fibertec is an environmentally friendly and gentle detergent for wool clothing. A perfume-free detergent that extends the life of your clothes and optimizes the breathability of the garments. Washes away stains and leaves no residue on the garment. FiberTec has detergents for your woolen items, your down sleeping bag and your shell garments. Compared to "regular" detergents, these products are more gentle and effectively remove both grease and dirt. Also works as an effective stain remover if used undiluted.