Key Features:

• Built one size heavy for fast loading and big-fly turnover
• Designed specifically for GTs and bluewater species like marlin, dorado, and wahoo
• 65 lb. Tropi-Core for extreme strength and heat resistance
• AST Plus slickness additive for superior shooting performance
• High-contrast sighter for better line tracking during long runs
• Includes 100 lb braided add-on loops

Scientific Anglers Amplitude Smooth Titan GT Fly Line

Purpose-built for the heaviest saltwater work, the Amplitude Smooth Titan GT is designed specifically for environments where gear gets pushed to the limit.

Built one full size heavy, this line loads powerful saltwater rods quickly and delivers large, wind-resistant flies with authority — whether you're firing at a cruising GT on the flats or throwing big baitfish patterns offshore. The aggressive taper helps turn over heavy leaders and bulky flies with control when quick, decisive casts matter.

A 65 lb. Tropi-Core provides the strength and stiffness needed for brutal fights and tropical heat, while the high-contrast sighter makes it easier to track your line when fish take off on long runs.

Amplitude Smooth technology with AST Plus keeps the line slick for maximum shooting distance and long-term durability in demanding saltwater conditions.