S.A. Dacron Backing 20lb x 5000yd Orange

S.A. Dacron Backing 20lb x 5000yd Orange from Scientific Anglers is built for the moments that test your resolve on the water. This backing is designed to handle the drag-blistering runs of steelhead and bonefish, giving you the security of a robust, consistent connection between your fly line and reel when the fight goes deep.

Why this backing stands out in fly fishing setups:

• Extremely thin diameter with low friction. The compact profile minimizes packing on the spool and reduces resistance as the line turns over, helping you achieve smoother, longer casts and quicker, steadier retrieves during high-adrenaline runs.
• High abrasion resistance. Engineered to withstand rough riverbeds, coral, sand, and the sharp jabs from big, powerful fish, so your setup lasts through challenging days on the water.
• Colorfast, high-visibility orange. The vivid orange not only helps you monitor line status at a glance, but also improves tracking in varied light and water conditions, so you can stay composed when the bite is on.
• Generous 5,000-yard spool. A long run demands ample backing, and this spool size minimizes the need for frequent re-spooling while you chase long, hard fights on distant flats or remote rivers.
• Trade-off clarity for real-world performance. The 20 lb test translates to reliable strength for most catch-and-release or trophy pursuits, with the diameter specified at 0.018 inches (0.46 mm) to balance weight and durability. For those who need even heft, a 30 lb variant with a 0.024-inch (0.61 mm) diameter exists in the same 5,000-yard format for heavier lines and tougher battles.
• Specialty colors on request. If you’re coordinating multiple outfits or reels, Specialty colors can be arranged in 5,000-yard spools to suit your gear—just ask.
• Shipped from a local supplier. Dependable sourcing means quicker delivery and a more predictable supply chain for your angling plans.
• Brand you can trust. Scientific Anglers has a long-standing reputation for durable, reliable fly-fishing components, and this backing line is designed to complement high-performance reels and lines with a focus on real-world fishing outcomes.

Who benefits most from this backing? Serious freshwater and saltwater fly anglers who demand durability without sacrificing line capacity or handling. It’s an ideal choice for steelhead rivers and bonefish flats where a strong, visible backing can make the difference between a missed opportunity and a trophy fight down to the last second. Pair it with compatible fly lines and reels in your toolkit to create a cohesive, dependable setup that you can trust when the water boils and the fish of a lifetime comes calling. Product No. SYSBAK205THOR.