From Sybai Flyfishing of the Czech Republic comes WEB FLASH FOIL.
This is a micro thin sheet of material that has a woven look and feel plus an iridescent glitter to it - excellent for cutting or burning to shape for wings on your patterns.
The material can be folded so ideal for Caddis wings ... try it also for spent patterns - the material will really shine on the water surface.
Also try it cut into thin strips as a shell back on nymphs - it has a superb textured look and feel that catches the light.
You can also colour the material with permanent marker pens to add extra detail such as blotches and stripes ...
Each sheet measures 70 mm x 100 mm.