Sunline Basic FC fluorocarbon line in 4lb test. 320m spool. Low visibility underwater due to refractive index close to water. Sinks quickly for deep presentations. Moderate stretch for shock absorption on hooksets. Good abrasion resistance for rocky or structure fishing. Standard diameter for 4lb test maintains strength while keeping visibility low.
TARGET USE: Mainline for finesse fishing techniques, drop shotting, or finesse jigging where low visibility is critical.