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Scientific Anglers Amplitude Textured Infinity Fly Line


A textured line will help you do a number of things better. Your line will shoot through the guides with substantially less friction, allowing you to maximize your distance. The hex-shaped texture in the head section keeps the line floating higher in the water than any fly line has before. On top of all this, the infinity taper now comes in the textured Amplitude series. This may be the best all-purpose trout line we've ever seen!


IFTD Best Fly Line Amplitude Infinity Gear Guide Best New Fly Line Amplitude Infinity Fly Fusion Fly Line Amplitude Infinity

SAID Icon AST Plus Icon Dry Tip Icon Welded Loops Icon Shooting Texture Icon Floating Texture Icon TRP Icon Camo Icon 


The first series of lines to feature the revolutionary AST PLUS slickness additive, the Amplitude series will shoot farther and last longer than any other line on the market. It’s slickness down to a science.

The conventional wisdom in fly fishing is that there’s no such thing as a “do it all” freshwater line. We have something to say about that. The Amplitude Infinity has the power to bomb out streamers, yet retains delicacy for dry flies. It mends like an absolute dream, and delivers flies at all distances. Built a half-size heavy, with a long head and substantial front taper, it’s perfect for everything from trout and panfish to pike and steelhead. There’s a reason we call it the Infinity: there is no end to what you’ll be able to do with it.


  • Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
  • Floating Texture on the tip section for the ultimate in flotation; it simply keeps dry flies floating longer
  • Shooting Texture running line delivers longer casts, thanks to a reduction in friction
  • Extremely versatile general-purpose taper designed for most freshwater species; an excellent line for trout, grayling, panfish, bass, carp, steelhead, salmon, and pike
  • Made a half-size heavy to load fast-action rods, but works well with a variety of rod actions
  • Extended head length for long-distance casts and superior mending ability 

Customer Reviews

Based on 1 review
Matthew Guille
Great line