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
No memory and a smooth finish for fast casting. Incredibly thin diameter for unbelievable lure action and low visibility. Exceptionally strong - three times stronger than mono. Ultimate sensitivity to telegraph feel for structure and strikes.