From Semperfli:
'Using similar techniques as with Nano Silk we extruded thin Polyester strands which were then slightly twisted and had a light amount of wax added to them. The amount of wax added has been specifically applied after consultations with top Professional Fly Tyers.
With the lightly twisted strands this allows the thread to
5.0
3 ratings
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Excellent
I like this and have decided to replace any 8/0 thread I use with this brand and size.