Scientific Anglers Sonar Leaders

Scientific Anglers SONAR Sinking Leaders Turn any floating fly line into a versatile depth-control system with the Scientific Anglers SONAR Sinking Leaders. Designed for anglers who need to quickly adjust their presentation without changing fly lines, these sinking leaders allow you to fish everything from shallow runs to deep pools with the same setup. Available in multiple sink rates, SONAR Leaders help deliver flies precisely where fish are feeding. A welded rear loop provides fast, secure attachment to your fly line, while the integrated micro-swivel helps minimize line twist and improves overall performance. Built on durable 25 lb monofilament, these leaders are equally at home on single-hand trout outfits, streamer setups, and light two-handed rods. Whether you're swinging soft hackles, stripping streamers, or probing deeper holding water, SONAR Sinking Leaders offer a simple and effective way to expand the capabilities of your fly line. Features Instantly converts floating fly lines into depth-specific fishing systems Available in floating and multiple sinking densities Welded rear loop for quick, hassle-free rigging Integrated micro-swivel on sinking models helps reduce line twist Durable 25 lb monofilament core construction Printed line identification for easy density and length recognition Compatible with single-hand and light double-hand fly fishing setups Best Uses Streamer fishing for trout Swinging flies for steelhead and salmon Lake and stillwater fly fishing Reaching deeper holding water without changing fly lines Fine-tuning presentation depth throughout the day When fish move deeper than your floating line can effectively reach, SONAR Sinking Leaders provide a fast, convenient solution that keeps you fishing instead of re-rigging.