Scientific Anglers Mastery Series Fly Lines

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 toward the front of the head, the MPX provides the same benefits of the GPX, with an added emphasis on presentation. The power is still there, only with an added bit of finesse. Meet your new best friend and the best all-around fly line we’ve ever made.

• The ultimate general presentation line
• Improved version of the classic GPX taper
• Built a half-size heavy to load rods and turn over large flies easily
• Excellent with dries, nymphs and streamers
• Features the ST+ slickness additive
• For use in moderate and cold cliamtes
• Braided multifilament core
• SA ID - SA MS MPX WF X F (X = line weight)

Mastery Standard

AFFTA standard weight, mid-length head

Mastery Standard is a true to AFFTA line weight casters fly line. Built with a mid-length head for exceptional mending and accuracy at long distances. If you love casting this will quickly become one of your new favorites.

• True to line weight
• Mid-length head for exceptional mending and accuracy at distance
• The caster’s fishing line
• Braided multifilament core
• For use in moderate and cold climates
• SA ID - SA MASTERY STANDARD WF X F (X = line weight)

Mastery Double Taper

Floating dry-fly line

Double-taper fly lines may not be the most versatile of the bunch, but they’re very good at what they’re designed to do: delicate work at shorter distances. An excellent dry-fly line, the Mastery Double Taper excels at presenting flies with a touch of grace, which is extra handy on spring creeks and smaller streams.

• Double-taper lines are extra-delicate for subtle presentations
• Excels at short-to-medium distances with dry flies and smaller nymphs
• The ultimate fly line for chasing trout
• Braided multifilament core
• SA ID - SA MS TRT DT X F (X = line weight)

Mastery Trout

All-round trout taper

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 the hills of Georgia.

• Revised compound taper - perfect for delicate deliveries
• Excels at short-to-medium distances with dry flies, smaller nymphs and streamers
• The ultimate fly line for chasing trout
• Braided multifilament core
• SA ID - SA MS TRT WF X F (X = line weight)

Mastery Anadro/Nymph

For anadromous fish and big rivers

If you’re anything like us, the allure of big fish and big rivers is intoxicating. That’s precisely why we created the Anadro fly line. Designed with line control in mind, its extended rear taper allows you to cast a mile, mend with authority, and turn over nearly any rig imaginable—from dredging double nymphs to larger dry-dropper concoctions. Steelhead, salmon, and trout won’t know what hit them.

• For extended line conrol, long-distance casting, and turning over heavy rigs
• Ideal for roll casting and long-distance mending
• High-vis and high floating yellow tip
• Features the AST shooting technology
• For moderate and cold climates
• Braided multifilament core
• SA ID - SA MS ANADRO WF X F (X = line weight)

Mastery Great Lakes Switch

Powerful taper for casting heavy indicator rigs

Designed with the Great Lakes anadromous angler in mind the Great Lakes Switch line has an aggressive taper designed to turn over large indicators and the heaviest flies. Intended for use with switch and spey rods with a long head for superior mendability.

• Designed for use with switch and spey rods when targeting salmon and steelhead with indicators
• Long head for superior mendability
• Aggressive taper turns over the largest indicators and heaviest flies
• Ideal line for boat or wade fishing
• For use in cold and moderate climates
• Braided multifilament core
• SA ID - SA MS GL SWTCH INDO WF X F (X = line weight)

Mastery ART

All-Round Taper

• Half-size heavy to load rods quickly
• Powerful taper helps to turn over long dry-fly leaders and deliver nymphsand small streamers
• Great for single-handed Spey casting
• Two-tone super-stealthy colours with new camouflage tip for wary fish
• Floating texture on tip for higher floatation
• Braided multifilament core for cold water applications
• SA ID - SA MS ART WF X F (X = line weight)

Mastery VPT

Versatile Presentation Taper

The Mastery Versatile Presentation Taper, or VPT, looks like alphabet soup from afar, but this acronym truly means something. An ideal trout dry-fly line, the VPT features an extended front taper that presents flies delicately and also serves to help perform roll casts and single-handed Spey maneuvers. Try it once and you’ll learn that the VPT is A-OK.

• Perfect for delicate dry-fly fishing
• Sharkskin textured tip for high floatation
• Great for roll casting and delicate presentations
• Excellent line control in close or at a distance
• Braided multifilament core
• SA ID - SA MS VPT WF X F (X = line weight)

Mastery SBT

Short belly taper

We’ll get to the point. The Mastery Short Belly Taper, or SBT, is just that: a short-bellied fly line with an extended handling section. That means more mass is distributed to the front of the line, which assists in turning over weighted flies and performing roll casts. Excellent for single-handed Spey casts as well, the SBT isn’t your traditional weight-forward fly line, which is just the way we like it.

• Short head design with handling line delivers flies at short-to-medium range with extended line control
• Turns over weighted nymphs and streamers when used with long leaders
• Non-spooking camo tip, bright coloured belly for easier handling and line control
• Well suited for single-handed Spey casts
• Braided multifilament core
• SA ID - SA MS SBT WF X F (X = line weight)

Mastery Expert Distance Competition

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 even possible. Sure, you can win a casting competition with it, but isn’t it more fun to catch fish?

• Extra-long head and tapers for long-distance casting
• Compound head design ensures strong turnover at distance
• In orange competition colour with extended length (120')
• For moderate climates
• Braided multifilament core
• Competition ID - SA MS EDC WF X F (X = line weight)

Mastery Competition Nymph

For European-style nymphing

Built to FIPS Mouche standards, but designed to simply catch fish, the Mastery Competition Nymph line is as simple as it gets: 80 feet of level floating line. It doesn’t matter if you’re in an international competition, or just trying to outdo yourself, the Competition Nymph line will perform, fish after fish. Specifically designed for European-style nymphing, if you’re looking for the thinnest, most sensitive line available, look no further.

• Ultra-thin level-line design for premium performance and sensitivity
• For use with rods 0- through 5-weight
• Meets FIPS Mouche competition specifications
• For use in moderate and cold climates
• Monofilament core
• Comes with braided loop connection

Mastery Euro Nymph Kit

For European-style nymphing

Convert almost any single hand trout rod quickly to a Euro Nymphing setup with this kit. Includes a 20' floating Euro Nymph Tip (0.25" dia), our Absolute Euro Nymph leader, and foam storage spool.

Mastery Jungle Titan

For throwing big flies deep in the jungle

When you’re knee-deep in a clear jungle stream somewhere in South America, you need the finest tools available in order to chase down the fish of your dreams. Whether it’s a radiant golden dorado or wickedly powerful peacock bass, the Mastery Jungle Titan fly line will get the job done. Built for the harsh jungle environments, and designed to turn over the largest flies possible, this fly line just might make you King or Queen of the jungle.

• Designed for throwing big dries and streamers to jungle fish such as peacock bass and golden dorado
• Powerful head loads quickly and delivers large flies to distant targets
• Will turn over the largest flies imaginable
• Built two sizes heavy for turning over big rigs; use designated line weight for your rod
• Ideal line for boat or wade fishing
• Tropi-Core technology remains slick and stiff in tropical environments
• SA ID - SA MS JUNGLE TITAN WF X F (X = line weight)

Mastery Bass Bug

For bass, cod, barramundi and other freshwater natives

You’ve got articulated streamers and poppers hanging from the lampshade on your desk. You think in terms of bass and other freshwater natives. The term conehead doesn’t refer to an old comedy sketch. We totally get it. And that’s why we designed the Mastery Bass Bug. Similar in design to our Mastery Titan Long, but with a specialized warm-weather coating built to withstand hot temperatures. It’s quite possibly the best bass fly line ever constructed. If you have an all-encompassing need to throw big flies for bucketmouths, then look no further. This fly line is made for you.

• Designed specifically for throwing large, air-resistant dry flies and streamers for bass in rivers, lakes, and ponds
• Overweighted by two line sizes to assist in loading rods and turning over heavy rigs; use designated line weight for your rod
• Extended rear taper for line control and mending ability
• Ideal line for boat or wade fishing
• Features a specialized warm-weather coating for fishing in high temperatures
• For use in moderate and hot climates
• Braided multifilament core
• SA ID - SA MS BASS BUG WF X F (X = line weight)

Mastery Titan

Quick-loading taper for big flies

You’ve got articulated streamers hanging from the lampshade on your desk. You think in terms of black, white, or olive. The term conehead doesn’t refer to an old comedy sketch. We totally get it. And that’s why we designed the Mastery Titan. If you have an all-encompassing need to throw big flies for big fish, then look no further. This fly line is made for you.

• Loads quickly and delivers the biggest flies to the furthest targets
• Excellent turnover due to short, powerful head and short front taper
• Ideal line for boat or wade fishing
• For temperate climates
• Braided multifilament core
• SA ID - SA MS TTN WF X F (X = line weight)

Mastery Titan Long

Superior turnover with more line control

Cast a mile, mend with authority, and turn over any rig imaginable.

• Designed for targeting bass and other warmwater species
• Built two sizes heavy to load quickly and deliver the biggest flies to the furthest targets
• Excellent turnover due to powerful head and short front taper
• Extended rear taper for line control and mending ability
• Ideal line for boat or wade fishing
• For use in moderate and cold climates
• Braided multifilament core
• SA ID - SA MS TTN LNG WF X F (X = line weight)

Mastery Saltwater

Floating all-round saltwater taper

If you had to choose one saltwater fly line for a variety of situations and species, the Mastery Saltwater taper should be a finalist. The versatile compound design provides enough power to cut through the wind, while retaining a delicate delivery for spooky fish on the flats. Built for a wide range of temperatures and environments, the Mastery Saltwater simply does it all.

• Compound taper turns over big flies
• Designed for use in temperate and tropical climates
• Two tone fore better visibility
• Variable head lengths for distance casting and quick shots to passing fish
• Small diameter to deal with windy conditions
• Braided multifilament core
• SA ID - SA MS SW WF X F (X = line weight)

Mastery Grand Slam

For bonefish, permit and tarpon

Tarpon. Bonefish. Permit. All in one day. All on one line. That’s the idea behind the Mastery Grand Slam, a fly line designed specifically to help you achieve one of angling’s most elusive accomplishments. With a short, powerful head the Grand Slam cuts through wind and turns over crabs, shrimp, and tarpon toads with ease. We’ve got the line. You just need the fish.

• Designed for demanding tropical saltwater applications
• Loads rods quickly, cuts through wind with ease, and turns over big saltwater flies
• Short, powerful head for quick casts to moving targets
• Overweighted by nearly a full line weight
• Tropi-Core technology for tropical climates
• SA ID - SA MS SLAM WF X F (X = line weight)

Mastery Bonefish

Bonefish-specific floating line

A day of bonefishing will either be the most fun you’ve had with a fly rod or the most frustrating day of your life. Take some of the chance out of the equation with the Mastery Bonefish fly line. Built on a stiff core for tropical conditions, the Bonefish taper features a long, compound head for casting accuracy and delicate deliveries to fish that you’ll swear have a sixth sense.

• Revised taper for delicate presentations to skittish fish
• Precise presentations in tropical conditions
• Stiff coating and core for enhanced shooting
• Looped on both ends for quick rigging
• Long head for fly control and casting accuracy
• Tropi-Core technology for tropical conditions
• SA ID - SA MS BF WF X F (X = line weight)

Mastery Tarpon

For tarpon on the flats

There is absolutely nothing in fly fishing quite like seeing a tarpon inhale your fly, leap toward the heavens, and race like a madman for the horizon. In order to make that happen, you’ll need help: the Mastery Tarpon fly line. Designed with a short head for quick shots, this is the perfect line for casting flies to tarpon of all shapes, sizes, and temperaments. Just remember to bow to the king when it jumps.

• Designed specifically for presenting flies to laid-up or moving tarpon
• Smooth casting, with a delicate delivery and tangle-free design
• Stealthy colour scheme for wary fish
• Short head for quick rod loading
• High-strength core to fight large fish
• Tropi-Core technology for tropical climates
• SA ID - SA MS TRP WF X F (X = line weight)

Mastery Redfish (Warm Water)

For redfish in warmer temperatures

Let’s get this out of the way: catching a tailing redfish might be the greatest thing in the world. Just make sure you have the right line for the job. Our Mastery Redfish Warm fly line is designed with a short head for quick shots, which is exactly what you’ll need when you’re poling through a marsh in 10 inches of water on a brutally hot summer afternoon.

• Strong front taper and head for quick, powerful casts
• Half-size heavy for quick loading
• Increased running line diameter
• Looped at both the tip and the running line
• Hard saltwater coating for hot, summer fishing
• Tropi-Core technology for tropical conditions
• SA ID - SA MS RF WF X F (X = line weight)

Mastery Redfish (Cold Water)

For redfish in cooler temperatures

Let’s get this out of the way: catching a tailing redfish might be the greatest thing in the world. Just make sure you have the right line for the job. Our Mastery Redfish Warm line is designed with a short head for quick shots, which is exactly what you’ll need when you’re poling through a marsh in 10 inches of water on a freakishly chilly fall evening.

• Strong front taper and head for quick, powerful casts
• Half-size heavy for quick loading
• Increased running line diameter
• Looped at both the tip and the running line
• Sofet saltwater coating for cool-weather fishing
• Braided multifilament core
• SA ID - SA MS RFC WF X F (X = line weight)