Gel-spun Polyethylene Microfibers make up the superlines. This fiber makes superlines 3 to 4 times stronger than other types of line at equal diameter. These high-tech lines have almost zero stretch, and offer unsurpassed sensitivity. Berkley makes two types of superlines - Fused and BraidedFireLine Fused Original
Combines the ultimate in low-visibility with all of the benefits of FireLine. Incredibly thin diameter to work the tiniest micro bait. Supple enough to handle the coldest weather. Incredibly strong - three times stronger than mono. Ultimate sensitivity to telegraph feel for structure and strikes.