Rit® Dye Navy Blue. All-purpose concentrated. Net Wt. 1 1/8 oz. (31.9 g). Package color reflects approximate results when dyeing white or off-white 100% cotton. One package dyes 1 lb. dry weight or about 3 yards medium weight fabric. For most washable fabrics. Not recommended for 100% polyester, acrylic, acetate, fiberglass or metallic fibers, or fabric with special finishes, rubber backing, washable only in cold water or labeled dry clean only. Quality brands. Questions Call 1-866-794-0800. © 2015 Phoenix Brands™.