Superior Threads MonoPoly Invisible Thread 2200yards
This reduced-sheen monofilament polyester is the best choice when it comes to invisible threads.
Unlike other monofilament threads made from nylon, MonoPoly is 100% polyester.
Commonly referred to as an invisible thread due to its fineness and reduced-sheen, MonoPoly is great for the bobbin or top.
Available in two colors, Smoke (for dark fabrics) and Clear (for light fabrics), both available in my store.