Varivas Super Trout Advance Extreme Shock Leader is a top-of-the-range nylon designed for trout fishing, offering an excellent diameter-to-resistance ratio. Extremely supple, it maximizes lure movement and does not harden easily, even in extreme cold. Its brown color is invisible in the water, ensuring optimum discretion. Available in lengths of 30m, with resistances ranging from 4 lb to 30 lb and diameters from 0.165 mm to 0.47 mm.