Seaguar STS Trout/Steelhead 100% Fluorocarbon Leader — 6 lb, 100 yd | 06STS100

Meet Seaguar STS: a species-specific fluorocarbon leader for trout and steelhead

Seaguar, the inventor and world leader in fluorocarbon fishing lines and leaders, introduces STS—the first material crafted specifically for Salmon, Trout, and Steelhead. This 100% fluorocarbon leader delivers impressive abrasion resistance and knot strength, all while maintaining a smaller diameter than traditional monofilament. With a fast sinking rate and a lower refractive index, STS offers potential advantages in getting baits into the strike zone without drawing excessive underwater attention.

Field-tested in a range of water conditions, STS aims to translate to more confident encounters with wary fish. The line’s ability to cut through current and laydowns while staying true to your knot can help you stay in the moment when a fight unfolds. While results will vary by water, technique, and quarry, the material is designed to support consistent performance in demanding environments.

Key benefits

• 100% fluorocarbon composition for strong knot strength and reliable abrasion resistance
• Smaller diameter compared to monofilament, reducing drag and helping your lure track naturally
• Fast sinking helps present baits and lures more quickly in feeding zones
• Low refractive index means near-invisibility underwater, aiding stealth in clear water

In the field

• Performs through rocks, brush, and heavy cover, improving line management in difficult spots
• Better bite transfer and control in current, contributing to smoother hook-setting opportunities
• A trusted choice among anglers targeting finicky trout and challenging steelhead habitats

How to use

Pair STS with your preferred main line and tippet using standard fluorocarbon knots. Choose the appropriate weight and lure based on water conditions, then test efficiency with a few casts in calmer pockets before moving through faster runs.

Note: As with any fishing gear, performance varies by technique, water, and species. Seaguar remains a leading guide for fluorocarbon technology and durability, with STS offering a specialized option for trout and steelhead anglers seeking stealth, strength, and reliability.