MFC Micro-Barred Fibbetts are premium, translucent, and tapered synthetic nylon fibers featuring durable, deep-penetrating, factory-applied barring for enhanced realism on fly patterns. Ideal for mayfly tails, emerger/nymph legs, and antennae, these fibers provide consistent stiffness, length, and a natural, segmented look that mimics aquatic insects better than natural materials.