Sometimes you just need a fly line that will punch through wind or get across a wide trough to reach the opposite bank. Scientific Anglers'™ Sonar Titan Int/Sink 3/Sink 5 Fly Line excels in these conditions with its short, powerful head that turns over flies with ease and its ability to load rods quickly, delivering the biggest flies across a wide expanse. Mastery Texture lets the line float exceptionally high and works with Advanced Shooting Technology that sheds debris to reduce friction for longer casts and increased durability. Sonar Sinking Technology combines a unique taper with tungsten to get your fly down where the fish are feeding, and thanks to triple-density construction, the line sinks uniformly for a straight-line connection with your fly. Scientific Anglers Line Identification (SA ID) makes it easy to identify similar lines at a glance. Welded loops. Braided multifilament core.