H2O Steve Farrars Flash Blend

Steve Farrar's Flash Blend is a Slinky fiber mixed with thin glitter fiber. H2O Slinky Fibre is quite stiff and slippery curled synthetic fiber. This fiber is at its best in pike flies, where the lengths of the fibers are over 10 cm, allowing the material to come alive in the water.

Slinky Fibre's durability is in a class of its own and it does not tend to become unusable due to tangling during pike handling, as softer materials do. The material allows for large-profile, lightweight, and translucent flies.

http://ruotoblog.com/2013/02/18/mikon-slinky/