210 denier waxed flymaster or waxed flat, it's a good strong thread that you can really bear down on. The waxed flat best for making thread neck jigs because the wind of the thread is loose and basically flat, it stacks on top of itself nice and even. The waxed flymaster is a round thread which is better suited for jigs where you're trying to hide the thread. Either one is fine to use though as I use both, just they make more color options in the waxed flymaster it seems.

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