RIT All-Purpose Powder Dye is a classic fabric dye for refreshing garments, accessories and home décor made from dyeable fibres. It works on natural fabrics such as cotton, linen, silk and wool, and on nylon and rayon. Dissolve the powder fully in very hot water before adding it to the dyebath, then test a swatch and follow RIT instructions for salt, vinegar, water temperature and rinsing. Colour/shade should be confirmed from the product variant.