Strong, smooth, flat, lightly waxed, slow building nylon fly tying thread. It has a breaking strength of about 2 lb.
Exceedingly strong for its diameter. Ultra Thread is made of continuous polyester filaments, slightly bonded, which ties flat on the hook. Splits easily, great for trout streamer work an steelhead flies!
Size: 140 Denier.
Spool: 100 yds.
