Scientific Anglers Amplitude Smooth Trout Expert Fly Line

The Amplitude Smooth series of lines are, simply put, the highest-performance smooth fly lines in the world. With up to five times less drag and eight times the durability of traditional lines, this will change the way you look at fly line performance.

Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
Excels in medium-to-long distances with dry flies and smaller nymphs; wonderful on glass and bamboo
The best, true-to-grain-weight line for casting small dry flies to picky risers
Elongated front taper is designed for delicate presentations 
For use in moderate and cold climates
Braided multifilament core
SA AMP S TROUT EXPERT WF X F (X = line weight)