Scientific Anglers Fly Lines: Magnitude Smooth Series
Introducing the Magnitude Smooth Premium Fly Lines
3 years in development.
16 iterations of material packages.
8 different variations of slickness formulas.
Over 2500 hours of field testing.
All to get to this point.
Using naturally buoyant polymers, we’ve created the next generation of clear floating lines. Our new DuraCoat material leverages advanced dual-polymer design to optimize line stiffness, abrasion resistance, and slickness. The core is enveloped by a supple material, promoting minimal memory and strong adhesion, while the outer layer boasts a robust composition that significantly enhances slickness and abrasion resistance. Enhanced with our EST+ slickness additive for unmatched durability, smoother shooting, and eco-friendly performance.
Magnitude Smooth Trout Expert Clear Float

Magnitude lines are ushering in a new era in fly line technology, headaches with clear lines are a thing of the past. Our new family is loaded with revolutionary new technologies making it most durable and slickest clear floating fly line on the market. Period.
Features:
- Optimized for use above 50F/10C. This line can be fished below
those temperatures, but will require stretching by hand to manage
coils. - DuraCoat leverages advanced dual-polymer design to optimize line
stiffness, abrasion resistance, and slickness. The core is enveloped
by a supple material, promoting minimal memory and strong
adhesion, while the outer layer boasts a robust composition that
significantly enhances slickness and abrasion resistance. - Enhanced with EST+ slickness additive for unmatched durability,
smoother shooting, and eco-friendly performance. - Using naturally buoyant polymers, we’ve created the next
generation of clear floating lines. - The 10′ clear floating tip allows for the ultimate stealth when
presenting flies to highly pressured fish. - Revised compound taper for delicate deliveries
- SA MAG S TROUT EXPRT WF X F (X = line weight)
Colours: Sage Green/Clear
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF4F | 66.0′ | 90.0′ | 120 |
| WF5F | 68.0′ | 90.0′ | 140 |
| WF6F | 70.0′ | 90.0′ | 160 |
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Magnitude Smooth Infinity Clear Float


Magnitude lines are ushering in a new era in fly line technology, headaches with clear lines are a thing of the past. Our new family is loaded with revolutionary new technologies making it most durable and slickest clear floating fly line on the market. Period.
Features:
- Optimized for use above 50F/10C. This line can be fished below those
temperatures, but will require stretching by hand to manage coils. - DuraCoat leverages advanced dual-polymer design to optimize line stiffness,
abrasion resistance, and slickness. The core is enveloped by a supple material,
promoting minimal memory and strong adhesion, while the outer layer boasts a
robust composition that significantly enhances slickness and abrasion resistance. - Enhanced with EST+ slickness additive for unmatched durability, smoother
shooting, and eco-friendly performance. - The option of a clear floating head or 10’ clear floating tip allows for the ultimate
stealth when presenting flies to highly pressured fish. - Extremely versatile general-purpose taper designed for most freshwater species
- 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
- SA MAG S INFNTY WF X F (X = line weight)
Colours: Buckskin/Clear
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF3F | 47.0′ | 90.0′ | 110 |
| WF4F | 48.0′ | 90.0′ | 130 |
| WF5F | 49.0′ | 90.0′ | 150 |
| WF6F | 50.0′ | 90.0′ | 175 |
| WF7F | 51.0′ | 90.0′ | 200 |
| WF8F | 52.0′ | 90.0′ | 225 |
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Magnitude Smooth Balance Clear Float


Magnitude lines are ushering in a new era in saltwater fly line technology, headaches with clear lines are a thing of the past. Our new family is loaded with revolutionary new technologies making it most durable and slickest clear floating fly line on the market. Period.
Features:
- DuraCoat leverages advanced dual-polymer design to optimize line stiffness, abrasion resistance, and slickness. The core is enveloped by a supple material, promoting minimal memory and strong adhesion, while the outer layer boasts a robust composition that significantly enhances slickness and abrasion resistance
- Enhanced with EST+ slickness additive for unmatched durability, smoother shooting, and eco-friendly performance
- Using naturally buoyant polymers, we’ve created the next generation of clear floating lines. With the option of a 15′ clear floating tip that allow the angler to track the fly and a full clear floating line for the ultimate stealthy presentation
- A taper meticulously designed to perform both in close and while shooting accurately to distance. Compared to aggressive saltwater tapers, Balance is more refined, but still capable of delivering typical saltwater flies.
- SA MAG S BALANCE WF X F (X = line weight)
Colours: Clear or Light Olive/Clear
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF7F | 43.5′ | 100.0′ | 205 |
| WF8F | 43.5′ | 100.0′ | 235 |
| WF9F | 43.5′ | 100.0′ | 270 |
| WF10F | 43.5′ | 100.0′ | 305 |
| WF11F | 43.5′ | 100.0′ | 350 |
| WF12F | 43.5′ | 100.0′ | 405 |
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Magnitude Smooth Grand Slam


Magnitude lines are ushering in a new era in saltwater fly line technology, headaches with clear lines are a thing of the past. Our new family is loaded with revolutionary new technologies making it most durable and slickest clear floating fly line on the market. Period.
Features:
- DuraCoat leverages advanced dual-polymer design
- Enhanced with EST+ slickness additive
- Using naturally buoyant polymers, we’ve created the next generation of clear floating lines
- With the option of a 10′ clear floating tip that allows the angler to track the fly or a full clear floating line for the ultimate in stealthy presentation
- Loads rods quickly, cuts through the wind with ease, and turns over big saltwater flies
- Overweighted by .75 sizes to load rods quickly; use designated line weight for your rod
- Short, powerful head for quick casts to moving targets
- SA ID – SA MAG S GRAND SLAM WF X F (X = line weight)
Colours: Clear or Horizon/Clear Tip
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF6F | 40.0′ | 100.0′ | 180 |
| WF7F | 40.0′ | 100.0′ | 205 |
| WF8F | 40.0′ | 100.0′ | 235 |
| WF9F | 40.0′ | 100.0′ | 270 |
| WF10F | 40.0′ | 100.0′ | 320 |
| WF11F | 40.0′ | 100.0′ | 370 |
| WF12F | 40.0′ | 100.0′ | 435 |
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Magnitude Smooth Infinity Salt


Magnitude lines are ushering in a new era in saltwater fly line technology, headaches with clear lines are a thing of the past. Our new family is loaded with revolutionary new technologies making it most durable and slickest clear floating fly line on the market. Period.
Features:
- DuraCoat leverages advanced dual-polymer design
- Enhanced with EST+ slickness additive
- Using naturally buoyant polymers, we’ve created the next generation of clear floating lines
- With the option of a 12′ clear floating tip that allows the angler to track the fly or a full clear floating line for the ultimate in stealthy presentation
- Made half size heavy to turn over large flies on windy days
- Extended head length for accuracy at distance
- SA ID – SA MAG S INFNTY SLT WF X F (X = line weight)
Colours: Clear or Translucent Aqua/Clear Tip
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF7F | 48.0′ | 100.0′ | 200 |
| WF8F | 49.0′ | 100.0′ | 225 |
| WF9F | 50.0′ | 100.0′ | 260 |
| WF10F | 51.0′ | 100.0′ | 305 |
| WF11F | 52.0′ | 100.0′ | 355 |
| WF12F | 53.0′ | 100.0′ | 415 |
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Magnitude Smooth Bonefish Plus


Magnitude lines are ushering in a new era in saltwater fly line technology, headaches with clear lines are a thing of the past. Our new family is loaded with revolutionary new technologies making it most durable and slickest clear floating fly line on the market. Period.
Features:
- DuraCoat leverages advanced dual-polymer design
- Enhanced with EST+ slickness additive
- Using naturally buoyant polymers, we’ve created the next generation of clear floating lines
- With the option of a 10′ clear floating tip that allows the angler to track the fly or a full clear floating line for the ultimate in stealthy presentation
- Loads rods quickly, cuts through the wind with ease, and turns over big saltwater flies
- Made half size heavy to turn over large flies on windy days
- Based on our popular Grand Slam taper profile, Bonefish Plus boasts an extended head length and lighter, half-heavy, weight, but maintains the short front taper to cast long leaders with ease
- SA ID – SA MAG S BNFSH PLUS WF X F (X = line weight)
Colours: Clear or Ivory/Clear Tip
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF6F | 50.5′ | 100.0′ | 175 |
| WF7F | 50.5′ | 100.0′ | 200 |
| WF8F | 50.5′ | 100.0′ | 225 |
| WF9F | 50.5′ | 100.0′ | 260 |
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Magnitude Smooth Tarpon


Magnitude lines are ushering in a new era in saltwater fly line technology, headaches with clear lines are a thing of the past. Our new family is loaded with revolutionary new technologies making it most durable and slickest clear floating fly line on the market. Period.
Features:
- DuraCoat leverages advanced dual-polymer design
- Enhanced with EST+ slickness additive
- Using naturally buoyant polymers, we’ve created the next generation of clear floating lines
- With the option of a 12′ clear floating tip that allows the angler to track the fly or a full clear floating line for the ultimate in stealthy presentation
- Loads rods quickly, cuts through the wind with ease, and turns over big saltwater flies
- Short head for quick rod loading
- High-strength core to fight large fish
- SA ID – SA MAG S TARPON WF X F (X = line weight)
Colours: Clear or Sand/Clear Tip
| Line weight | Head length | Total length | Grain weight |
|---|---|---|---|
| WF10F | 36.0′ | 100.0′ | 285 |
| WF11F | 36.0′ | 100.0′ | 340 |
| WF12F | 36.0′ | 100.0′ | 400 |
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