Scientific Anglers Amplitude Smooth Infinity Fly Line

The Smooth Infinity is the answer when a customer asks us, "If I can only buy one line, which one?" It does everything well: turns over an indicator rig with two tungsten nymphs on the Lower Provo, presents a size 18 PMD without slapping the water, and still has the backbone to chuck streamers when the brown trout get aggressive in the fall.

It's built a half-size heavy with a long head and substantial front taper, so it loads modern fast-action rods properly and mends beautifully at distance. The AST Plus slickness additive gives up to five times less drag and eight times the durability of traditional lines — prefer smooth over textured? This is the one.

Why we like it

• The genuine all-rounder: dries, nymphs, streamers, one line
• AST Plus slickness — superior shooting, serious durability
• Half-size heavy to load fast rods; long head for mending and distance
• Great for trout, but handles bass, carp & pike trips too
• Moderate & cold climate coating — ideal for Utah seasons

Buy online, pick up in store and we'll spool it onto your reel free, backing checked and welded loops rigged. Not sure between Smooth and Textured? Ask — we fish both.