Semperfli Nano Silk

Nano Silk is regarded as the tying thread choice of professional fly tyers worldwide. Being so super strong and available in such a variety of colors and deniers, it has endless possibilities and can be used for micro to medium flies. Virtually unbreakable and still capable of being split down for dubbing loops, there is no fly tying thread as strong as Nano Silk, anywhere.


As with ALL GSP type threads, Nano Silk must be used with a ceramic bobbin. It is also recommended that you use a craft blade or razor blade to cut Nano Silk, as it is extremely tough and can harm your best scissors.

If you rotate Nano Silk anti-clockwise to untwist (it has 100 twists per meter to keep the thread together), it will lay perfectly flat. It can be used for foam or split for a dubbing loop with a fine needle.

White Nano Silk can be dyed with a simple permanent marker (or Copic marker for fluorescent options) for any color you want.

Currently available in 6/0, 12/0, and 18/0 in the following colors:
Black
Brown
Copper
Grey
Olive
Orange
Pink
Red
White