Amplitude Smooth Double TaperThe first series of lines to feature the revolutionary AST PLUS slickness additive, Amplitude Smooth series will shoot farther and last longer than any other line on the market. Its slickness down to a science. Weight forward fly lines can be tailored to a variety of tasks. However, sometimes a Double Taper is just the best tool for the job. Whether is a classic rod, a modern glass or just a need for delicate dry fly deliveries the Amplitude Smooth