Fine 3/4" long nylon fibers mixed with flash filaments. Simply wind onto the hook like hackle, comb, and trim to shape. This is designed to be used for articulated flies like the "Game Changer" but will work well for things like crab and shrimp patterns when cut to shape.Do you need help? Do you have any questions?Ask a question and we'll respond promptly, publishing the most interesting questions and answers for others. 
