Wapsi's Ultra Thread is the go-to choice for fly tyers seeking superior control and strength. Available in both 140 denier (medium) and 70 denier (fine), this flat, smooth nylon thread lays perfectly on the hook with minimal build-up. Ideal for everything from delicate dry flies to robust streamers, Ultra Thread resists fraying, splits easily for dubbing loops, and offers excellent color saturation. Whether you're tying tiny midges or beefy buggers, Ultra Thread delivers unmatched performance and consistency for every fly on your bench. Ultra 140 has a breaking strength of approximately 2# and is recommended for size 6-14 flies. comparable to 3/0 thread Ultra 70 has a breaking strength of approximately 1# and is recommended for size 14-32 flies. comparable to 6/0 thread Made in the USA
