Rit dye suitable for natural fibres: cotton, linen, wool, silk, rayon and ramie. Perfect for a wide-range of applications. Rit dye delivers a vibrant color to anything you apply it to! Rit Dye dyes clothing and accessories, rejuvenates old garments, coordinates home decor, hides laundry accidents and more, works on washable fabrics including: natural fibers, such as cotton, silk and linen; synthetics such as rayon, nylon and acetate.