Scientific Anglers Amplitude Smooth Infinity Salt

Scientific Anglers Amplitude Smooth Infinity Salt Fly Line

The Scientific Anglers Amplitude Smooth Infinity Salt Fly Line is built for serious saltwater anglers. Designed for everything from bonefish to permit and tarpon, it thrives in tropical conditions where power and precision matter most. With a half-size heavy build, it turns over large flies with ease—even in strong winds—while maintaining delicate accuracy for spooky fish on the flats.

Thanks to AST Plus slickness technology, the line shoots farther, lasts longer, and performs consistently in demanding saltwater environments. The extended head length allows anglers to make long, accurate casts while providing better control during presentations. This makes it a perfect all-rounder for flats fishing or open-ocean situations.

As part of the Amplitude Smooth series, the Infinity Salt offers up to five times less drag and eight times the durability of standard lines. It also features a high-contrast sighter to help manage long runs during battles with powerful saltwater fish. Built tough for year-after-year use, this line sets the standard for premium saltwater performance.

FEATURES

• AST Plus slickness for superior shootability and increased durability
• Half-size heavy build for quick turnover of large flies in windy conditions
• Extended head length for accuracy and improved line control
• High-contrast sighter for tracking line during long runs
• Tropi-Core technology remains stiff and slick in tropical environments
• SA AMP S INFNTY SW WF X F (X = line weight)

LINE CHART

*Grain weight measured at first 9.14 m.