Scientific Anglers Amplitude Smooth Infinity Fly Line is the ultimate all-purpose freshwater line for anglers who demand performance across every technique.

Built with a long head and a powerful front taper, it excels in casting streamers, presenting dry flies delicately, and making flawless mends for perfect drifts. Whether you’re targeting trout, bass, steelhead, or pike, this line handles it all with ease.

Featuring Scientific Anglers Amplitude Smooth technology, this line offers up to 5x less drag and 8x the durability of standard lineswithout the textured feel. Its half-size heavy design loads rods quickly and delivers flies at all distances, making it ideal for any freshwater scenario.

• Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
• Extremely versatile general-purpose taper designed for most freshwater species; an excellent fly line for trout, grayling, panfish, bass, carp, steelhead, salmon, and pike
• 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
• Excellent for dry flies, nymphs, and streamers
• For use in moderate and cold climates
• Braided multifilament core
• SA AMP SMTH INFNTY WF X F (X = line weight)

Water Type: Freshwater
Species: Carp, Grayling, Panfish, Bass, Pike, Salmon, Steelhead, Trout