This type of line, also known as mono, is composed of just one plastic fiber, most commonly nylon, and has been around for generations. Some benefits of using monofilament lines are their affordability, abundance of availability, and ease of use. Due to its flexibility and stretch, you can use mono on most fishing adventures. Additionally, the material has good elasticity under pressure, reducing the likelihood that the hook will tear through a fish’s mouth, making it easy for the fish to escape. Mono also has a slow sink rate, which is ideal for topwater lures since it does not accelerate the bat’s descent.