Scientific Anglers Frequency Fly Line Boost
Scientific Anglers started from scratch when designing the Frequency Series. Choose the Boost when you want a line more powerful than the trout taper. Excellent general-purpose line. Half-size heavy and more powerful than the Trout taper. Better with larger, heavier flies. Supple and easy to use. Versatile mid-length head. Braided multifilament core. Color Willow. SA FR BST WF X F (X = line weight).