Possibly the oldest existing 100% Synthetic hairs still around and an integral part of our Trailer Trash flies and X-Treme Dubbing Brushes. This 100% Nylon, 6 inch long, 70 Denier is perfect for your Larger patterns, it's tough, medium soft, and flexible, with about the same movement as Bucktail yet it has a sheen similar to Polar Bear. There's still nothing else quite like it.