Scientific Anglers Fly Lines | Amplitude, Mastery, SONAR, Spey & Saltwater

Scientific Anglers fly fishing lines

Scientific Anglers Fly Lines for Every Freshwater, Saltwater and Spey Application

Our selection of Scientific Anglers fly lines includes the most advanced tapers and technologies in modern fly fishing. This collection features the Mastery and Amplitude MPX, Trout, and Anadro series, along with Amplitude Infinity Smooth, Amplitude Smooth Grand Slam, Mastery Double Taper, Spey Lite Skagit and Scandi heads, integrated Spey lines, SA Skagit Float, Bonefish and Saltwater tapers, plus Scientific Anglers backing. We also carry a full range of SONAR and SONAR Titan multi‑density sinking lines for anglers who need precise depth control and powerful casting performance.

Freshwater Precision and Versatility

Scientific Anglers’ MPX, Trout, and Anadro tapers are engineered for exceptional loop stability, mending control, and long‑distance accuracy. Whether you're presenting small dries or turning over heavy indicator rigs, these lines deliver unmatched performance across a wide range of trout and steelhead fisheries.

Saltwater Strength and Reliability

For flats anglers, the Amplitude Smooth Grand Slam and Bonefish lines provide quick‑loading performance, high‑shooting capability, and durability in tropical heat. These tapers excel when fast shots and clean presentations are essential.

Skagit Spey and Sinking Solutions

Two‑handed anglers will appreciate SA's Skagit Floating and Spey Lite lines, including multiple varieties like the Spey Lite Scandi, Skagit Short, Integrated Skagit lines and more. Together these Spey lines offer an excellent option for any two-handed rod or fishing application.

Sinking and Sink-tip Lines

Increase your trout effectiveness on lakes and rivers with Scientific Anglers fly lines designed for getting your flies to the perfect depth. From deep water trout lakes to ripping streamers on your favorite trout rivers, these SONAR lines from SA have everything covered from shallow intermediate lines to deep lakes.

Explore our full lineup of Scientific Anglers fly lines to match your rod, water type, and fishing style.