The Sunline Siglon-V Monofilament spaces between the nylon molecules are filled with resin in a new resin reinforcement process to produce a hydrophobic line which retains its strength and limpness. That reinforcement provides a tremendous advantage for trophy hunter anglers. UV resistant processing makes the line impervious to weakening or degradation due to sunlight. I.G.F.A. rated for incomparable strength to withstand aggressive pulling and shock.