For bridal, quilting, applique, and crafting enthusiasts invisible thread can be a wonderful choice. Though it takes a bit of qetting used to, once you have your tension adjusted it works beautifully in top and bottom. The Superior reduced sheen monofilament polyester is a wonderful choice in invisible threads. This monofilament thread is 100% polyester and fine. It works well on tulle too. This clear and smoke set provides you the option on reducing visibility even more, especially on those darker sheers. Happy stitching. Trial and error with only slight adjustments to the top tension and you will see beautifully balanced stitches.