Scientific Anglers Fly Lines
Our collection of Scientific Anglers fly lines features the brand’s most advanced tapers for trout, steelhead, warmwater, and technical indicator fishing. Best sellers like the Amplitude Smooth Infinity, Amplitude Smooth Anadro Indicator, and Mastery MPX deliver exceptional performance across a wide range of freshwater conditions. We also carry SA’s full Spey lineup, including Skagit Floating Heads, Spey Lite Skagit and Scandi Heads, and Spey Lite Integrated options. Additional offerings include SA backing in multiple colors sold by the yard and custom-length T-material sink tips with hand-crafted, heat-welded loops.
-
SA Custom Length Sink Tips
-
Scientific Anglers 20 lb. White Backing - 100 yards
-
Scientific Anglers Absolute Flat Mono Shooting Line
-
Scientific Anglers Amplitude Smooth Anadro Indicator
-
Scientific Anglers Amplitude Smooth Creek Trout Line
-
Scientific Anglers Amplitude Smooth Grand Slam
-
Scientific Anglers Amplitude Smooth Infinity Line
-
Scientific Anglers Amplitude Smooth Infinity Plus Line
-
Scientific Anglers Amplitude Smooth Infinity Salt
-
Scientific Anglers Amplitude Smooth MPX Line
-
Scientific Anglers Amplitude Textured MPX Line
-
Scientific Anglers Backing - Bulk 20 Lb.
-
Scientific Anglers Backing - Bulk 30 Lb.
-
Scientific Anglers Boost Line
-
Scientific Anglers Mastery Double Taper Line
-
Scientific Anglers Mastery MPX Line
-
Scientific Anglers Mastery Titan Line
-
Scientific Anglers Mastery Trout Line
-
Scientific Anglers Skagit Floating
-
Scientific Anglers Skagit Short
-
Scientific Anglers Sonar Stillwater Clear Camo Line
-
Scientific Anglers SONAR Stillwater Seamless Density
-
Scientific Anglers Sonar Titan Full Intermediate
-
Scientific Anglers Sonar Titan Sink Tip
-
Scientific Anglers Spey Lite Integrated Skagit
-
Scientific Anglers Spey Lite Scandi Heads
-
Scientific Anglers Spey Lite Skagit Heads
Why Anglers Choose Scientific Anglers Fly Lines
Scientific Anglers is known for producing fly lines that combine advanced materials, innovative tapers, and dependable performance across a wide range of fishing environments. Their designs emphasize smooth energy transfer, exceptional slickness, and precise control, making them a top choice for anglers who demand accuracy and versatility. Whether you are fishing small creeks, large rivers, warmwater lakes, or steelhead systems, Scientific Anglers offers purpose-built solutions tailored to modern rods and techniques.
Best-Selling Freshwater Fly Lines
The Amplitude Smooth Infinity is one of the most versatile freshwater lines available, offering a balanced taper that excels with dry flies, nymph rigs, and streamers. Its smooth coating and low-friction design help anglers achieve longer casts and cleaner presentations. For indicator fishing, the Amplitude Smooth Anadro Indicator line provides powerful turnover, enhanced mending capability, and excellent control for multi-fly setups. The Skagit Floating Heads offer powerful turnover for large flies and sink tips, making them ideal for winter steelhead and heavy-water conditions. Spey Lite Skagit Heads provide compact performance for lighter rods and smaller rivers, while Spey Lite Scandi Heads deliver smooth, efficient casting for summer steelhead and low-water presentations. Integrated options such as the Spey Lite Integrated Skagit offer seamless transitions and easy handling for anglers who prefer a single-piece setup.
Custom T-Material Sink Tips
For anglers who need precise depth control, we offer custom-length T-material sink tips cut to your requested length. Each tip is finished with hand-crafted, heat-welded loops on both ends for durability and ease of use. These tips pair perfectly with Skagit heads and allow anglers to fine-tune sink rates and swing depth based on river conditions, fly size, and seasonal flows.
Backing Sold by the Yard
Scientific Anglers backing is available in 20 lb and 30 lb options and comes in multiple color choices. We sell backing by the yard, allowing anglers to purchase exactly the amount needed for their reel setup. This flexibility ensures proper spool capacity and helps anglers customize their rig for trout, steelhead, salmon, or saltwater species.
Find the Right Scientific Anglers Line for Your Fishing Style
With advanced tapers, durable coatings, and specialized designs for both single-hand and two-hand applications, Scientific Anglers fly lines help anglers fish more effectively across diverse environments. Explore our full collection to find the line, head, or sink-tip system that best matches your rod, technique, and target species.