The Scientific Anglers Absolute Fluorocarbon Trout Supreme Tippet - 30m is more supple than most other options, providing better drag free drifts while maintaining a stealthy footprint. The Absolute Fluorocarbon Trout Supreme Tippet features a softer fluorocarbon outside layer that helps knots seat properly and increases overall knot strength, while the harder fluorocarbon core provides exceptional tensile strength.