DYLON Fabric Dyes are easy-to-use and provides perfect, long-lasting and intense colour results. Just pull back the wrap and drop the pod! Suitable for: cotton, linen & viscose. Mixes with synthetics will dye to lighter shades (pure synthetics will not dye). One pack dyes 600g of fabric (jeans + 4 shirts or a large bath towel) to full shade, up to 1.8kg to lighter shades.