Scientific Anglers Magnitude Smooth Infinity Clear Head Fly Line

When you need stealth without compromise, the Scientific Anglers Magnitude Smooth Infinity Clear Head delivers next-generation fly line performance in a near-invisible package. Combining advanced materials, proven tapers, and unmatched slickness, this line is made for anglers who demand total control when targeting highly pressured or wary fish.

The key to its performance lies in its fully clear floating head, which offers the ultimate in stealth presentation. Whether you're fishing over educated trout in stillwaters, casting to spooky trout in the river or fishing crystal clear glacial lakes, the unobtrusive head reduces visual impact on the water — letting you get closer without blowing your shot. Unlike traditional clear lines that often sacrifice handling or memory, the Clear Head Infinity is built with SA’s DuraCoat technology, a dual-polymer construction that boosts slickness, minimises memory, and greatly improves abrasion resistance.

To further enhance casting performance, the line is infused with EST+ slickness additive, offering smooth, long-distance shooting and excellent longevity. Combined with a half-size heavy design, it loads fast-action rods effortlessly but still performs beautifully across a wide range of rod types. The extended head length is perfect for anglers who want better mending control, smoother roll casts, and the ability to carry more line for longer, more accurate deliveries.

Designed to excel in temperatures above 50°F (10°C), this line remains supple and manageable throughout spring, summer, and fall. While it can be used below that range, a quick hand-stretch is recommended to reduce initial coiling in colder weather.

Whether you're fishing dries, nymphs, or small streamers, the Magnitude Smooth Infinity Clear Head gives you precision, distance, and stealth — all in one line. For freshwater anglers who want clean presentations and cutting-edge performance, this line changes the game.

The Scientific Anglers Magnitude Smooth Infinity Clear Head Fly Line is available in a range of line sizes for you to choose from in our drop down menu. This line comes in a buckskin / clear colouration.

Key features:
Optimised 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