Still the largest selling type of fishing line, nylon monofilaments remain popular because they are easy to use, are available in a wide range of colors and are available at a relatively low cost -- even for super-premium varieties. Monofilaments are engineered with more stretch than other types of line, a feature (combined with rod bending) that will help you land more fish.
Not a Mono. Not a Braid. The Next Generation of Fishing line. This ultimate spinning reel fishing line consists of hundreds of Dyneema® nanofilaments that are molecularly linked and shaped into a unified filament fishing line.
Also monofilament in structure, these lines are made with PVDF, commonly known as fluorocarbon. The popularity of fluorocarbon is largely due to these lines being invisible to fish. Unlike nylon, fluorocarbon refracts light nearly identically to water. In addition, fluorocarbon lines are fast sinking due to higher density. Since fluorocarbons do not absorb water, they also maintain their original strength and abrasion resistance. These lines are higher priced than nylon monofilaments, and require greater care in knot tying.
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 Braided.