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Scientific Angler
Scientific Anglers began with three men (Leon P. Martuch, Clare Harris, and Paul Rottiers) and a single vision, transposed into a company spanning across the globe, influencing the way modern fly fishermen interpret and practice our sport. The cast, the rods, the reels, and the flies all connect through the cotter pin of fly fishing: fly line. Scientific Anglers became the unequivocal champion of fly-line production through leading market innovation and development during fly fishing's early widespread appeal.
Buy on-line or talk with a knowledgeable fly fishing specialist:
Fly Lines
Amplitude Smooth Anadro/Nymph
For nymphing big rivers and stillwaters

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.
… moreAmplitude Smooth Infinity
The go-to line for all freshwater species

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.
… moreAmplitude Smooth Titan Long
For superior turnover with line control

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.
… moreAmplitude Smooth Trout
For delicate dry-fly deliveries to trout

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.
… moreFrequency Sink Tip
Sinking-Tip Line

In moving water, getting flies below the surface while maintaining control can present a challenge. That’s why sink tip fly lines were introduced. We took this idea, put it at an affordable price point, and came up with the Frequency Sink Tip. Featuring a Type III 10′ sinking tip, the … more
Mastery Expert Distance
Distance-Casting Taper

Don’t let the name fool you. This is an amazing trout fly line masquerading as a competition line. Designed with an extra-long head and rear taper, the Mastery Expert Distance is excellent in the wind, provides smooth distance casting, and lets you throw mends you didn’t think were … more
Mastery MPX
Mastery Presentation Taper

For years, the gold standard in the Scientific Anglers lineup was the GPX taper. From tossing small dries to slinging huge streamers, the GPX could do it all. But all good things must come to an end. Built a half-size heavy, the MPX taper starts where the GPX left off. Redesigned with more mass … more
Mastery Trout
Floating Dry-Fly Line

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 catch trout from the mountains of Germany to … more
Sonar Titan Full Intermediate
Titan Full Sink Intermediate

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 heinous flies just below the surface. Right … more