OverviewScientific Anglers took their revolutionary AST Plus slickness additive and put it into the brand new Amplitude Smooth Series. These lines are smooth like traditional lines, but have increased durability and slickness due to the AST Plus, which is mixed directly into their coatings.Each line is built with three colors to identify the separate parts of the line, and welded loops for quick and easy rigging.SA Amplitude Smooth Lines are simply the finest smooth fly lines in the world and are available in a number of freshwater and saltwater specific tapers.Read More +FeaturesFeatures the revolutionary AST Plus slickness additive for superior shooting ability and increased durabilityDesigned for targeting bass; perfect for pike, carp, and throwing streamers at troutPowerful head loads quickly and delivers large flies to distant targetsBuilt two sizes heavy for turning over big rigs; use designated line weight and your rodExtended rear taper for line control and mending abilityIdeal line for boat or wade fishingBraided multifilament core