The gold standard of furled leader floatants: Long lasting and high floating. Can be used on both furled leaders and modern fly lines. Keeps leaders floating and brings fly lines back to life! Best when applied prior to fishing but can be used as needed. Also works very well as a fly floatant when rubbed into flies sparingly. Once you use it, you will always want to have some with you. This is the original formulation without silicon. It is preferred by those who fish with classic bamboo rods as it does not leave silicon on the varnish finishes of rods.