RIT Back to Blue Denim Dye Kit is a boxed set for at-home dye projects where you want a more even refresh without mixing multiple components. Includes Bold Blue All-Purpose Dye and ColourStay Dye Fixative, plus gloves. Use the kit steps to help reduce bleeding and fading after dyeing It is suited to many natural-fiber fabrics and blends when you follow the product guidance and test on a hidden area when fabric content is unknown.