iDye for Natural Fabrics Royal Blue. Dyeing has never been easier as with the iDye washing machine method. The inner dye packet dissolves in water so there are no messy powders to deal with. Just add salt or vinegar depending on the type of fiber and run through the wash cycle. Each 14 gram package will dye 2 to 3 pounds of fabric. Comes in 38 vibrant colors; 30 colors for 100% natural fabrics and 8 colors with color intensifier for polyesters and nylons.... - iDye for Natural Fabrics Royal Blue. | 
