Spirit River Inc's new tungsten thread is extremely fine, strong and works well for tiny nymphs. The x-fine will tie down to a 28 and the fine is good for 12 through 20. This material is an actual wire but can be half hitched and adds a surprising amount of weight on smaller flies where lead creates too much bulk.
Barred Flashabou has transparent colors with a solid black bar. Great for adding flash when tying Bass,, Salmon and Steelhead fly patterns.View full product details
Danville Flymaster Plus Fly Tying Thread is heavier than Flymaster 6/0 but the same high quality smoothness and more finess-able than the 3/0 thread.View full product details