Rit Dye Powder Dye, 1-1/8 oz, Denim Blue, 3-Pack Denim blue powder 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. Enough for approximately 1 lb dry weight or 3 yards of medium weight fabric. Made in USA. Enough for approximately 1 lb dry weight or 3 yards of medium weight fabric. Made in USA.