Scientific Anglers Fly Lines

The Go-To Line for All Freshwater Species

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 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.
Built a half-size heavy, the MPX taper starts

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


Fly fishing for trout has never been so smooth,

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


Tarpon. Bonefish. Permit. All in one day. All on

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.

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.

Ideal for Small Creeks and Short Casts

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 th

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.

Get this: we took one of our most popular tapers, the Titan, drenched it in various mixtures of tungsten powder, and created a triple-density sinking fly line that will absolutely change the way you fish streamers forever. This is a fully tapered sinking

Triple-Density Sinking Fly Line

Get this: we took one of our most popular tapers, the Titan, drenched it in various mixtures of tungsten powder, and created a triple-density sinking fly line that will absolutely change the way you fish streamers foreve

With a name like Titan, this line promises big things. Luckily, it does more than deliver. The SONAR Titan Full Intermediate fly line is designed to manhandle even the largest flies, and with its intermediate density, it allows you to fish your most heino

So you know where the fish are holding. You’ve done your research. But you just don’t know how deep they are. Luckily, the SONAR Titan Sink Tip fly line offers a variety of solutions for all of your depth-finding needs. Just below the surface? Try the Sin

Who says you can’t be stealthy when you’re chucking streamers and poppers in the heat? The SONAR Titan Tropical Clear Tip fly line provides all the advantages of our Titan taper—easy loading and effortless turnover to name a few—and tops it off with an in

The Go-To Line for All Freshwater Species

The Mastery 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

The Mastery Trout line is ideally suited for chasing browns, rainbows, cutthroats, and any other trout you can imagine. Perfect for dry flies and ideal for smaller nymphs and streamers, the Mastery Trout is one of our mainstays and has helped anglers catc

You’ve got articulated streamers and poppers hanging from the lampshade on your desk. You think in terms of bass, both smallmouth and largemouth. The term conehead doesn’t refer to an old comedy sketch. We totally get it. And that’s why we designed the Ma