A virtually invisible material underwater, this type of angling cord is lauded for its low refractive index, mirroring that of water. Its composition typically includes polymers of fluorocarbon resins, providing a unique set of properties desirable in various fishing applications. For example, anglers targeting wary fish in clear water often select this option due to its inherent stealth.
The significance of this material lies in its abrasion resistance, density, and minimal stretch. These features translate to increased sensitivity for detecting subtle strikes, faster sink rates for presenting baits effectively, and greater resilience when navigating structure. Historically, its adoption revolutionized angling strategies, allowing fishermen to access deeper waters and trickier species with improved success rates compared to traditional monofilament or braided lines.