Kathys sparkle is trilobal nylon fibre sometimes known as glitz or icicle. I dye all my sparkle so the colour variety can be never ending. Sparkle is great to add to your spinning to put that zing in your yarn. I card it into my batts and now have felters adding it to their work. I have even spun it on it's own and then plied with wool, soft and colourful.