The same great material Enrico himself uses in all of his patterns to add just the right amount of reflection for a lifelike appearance. Longer fibers than Angel Hair, a bit stiffer. Extremely hydrophobic, dries out with one backcast for easier casting of bulky flies. Fly materials in blue pearl, chartreuse, silver, pearl, red, gold, orange, green/pearl, purple/black, steel blue, olive. Made in USA.