Jacquard iDye, Polyester, BlueDyeing solid, uniform colors has never been easier than with iDye for Natural Fabrics from Jacquard! iDye comes in a dissolvable packet, so there are never any messy powders to handle: simply dissolve the packet in the dye bath or drop it in the washer, then add the fabric. A hot water dye that produces brilliant colors on any natural fabric, iDye may be used on the stovetop or in the washing machine on the hottest cycle. Great for over dyeing