Specially formulated for ice fishing, this 100% fluorocarbon line offers near-invisible performance, bite-detecting sensitivity and a super-thin diameter for responsive lure control. Fluorocarbon has a refractive index that’s close to water, so it’s virtually invisible to fish. Its low-stretch, low-memory properties also deliver instant hooksetting power and improved manageability for better line handling. Available: 2, 3, 4, 5, 6-lb. test.