Scientific Anglers SA Dacron Backing S20-20lb Blue 100yd - Thin, Colorfast Backing

Premium backing for reliable line connection

Scientific Anglers SA Dacron Backing S20-20lb in blue delivers a remarkably thin profile with a smooth surface that reduces friction during retrieval. The backing combines high abrasion resistance with colorfast performance, helping it stay visible and durable under bright sun or cloudy skies. This means you can focus on the fight without worrying about backer wear or color fading, while keeping a clean, efficient connection between your fly line and reel.

Designed with color in mind, this backing comes in six bold colors and features distinct color-segment patterns to aid length awareness and line management on the water. Two tri-color schemes provide easy reference while you fish: Red/White/Blue and Green/Yellow/Red divide the backing into accessible 30-foot blocks, while an Orange/Yellow/Blue option marks 100-foot intervals. Whether you prefer a vivid setup for high-visibility conditions or a stealthier option for clear-water cruising, there is a choice to suit your style and environment.

Key benefits at a glance

• Extremely thin diameter with low friction and strong abrasion resistance
• Colorfast finish that resists fading under sun exposure
• Six bold color options for customization and visibility
• Red/White/Blue and Green/Yellow/Red tri-color patterns in 30-foot increments
• Orange/Yellow/Blue tri-color pattern in 100-foot increments
• Options including both vibrant and stealthy tones

Practical use cases

From long-range casts to demanding retrieves, this backing supports the line-to-reel connection during lengthy runs. The color segmentation helps you quickly gauge how much backing remains, which can be especially helpful when a fish stays deep or when battling through a heavy current. While it can add a layer of confidence to your day on the water, the backing does not guarantee outcomes and is one element of your overall setup. Expect a practical blend of lightweight feel, durable construction, and clear visual cues that can make a real difference in your fishing experience.