Airflo PolyLeaders have a high strength level monofilament core surrounded by an outer, supple low modulus tapered polymer. This unique combination provides the fly fishermen with a leader that almost turns over by itself! The level monocore is exposed at the tip to allow you to choose your favorite mono knot or loop connection. Simply add your favorite tippet material to create even extraordinary leader lengths. Available in a choice of seven densities, PolyLeaders extend your tactics to a degree unrivalled by the traditional mono leader.