A dense line that refracts light close to water, making it hard for fish to see. Low stretch, great abrasion resistance, and it sinks — the go-to leader material.
When to use it
Leaders (the #1 use)
Clear water
Finesse bass main line
Line-shy fish
Strengths
Nearly invisible underwater
Excellent abrasion resistance
Low stretch = good sensitivity
Sinks
Weaknesses
Pricey
Stiffer — more knot care needed
Can be brittle if knots are cinched dry
Key facts
Best species: Leaders for redfish/snook/snapper; finesse bass
Underwater visibility: Very low — its biggest advantage
Stretch: Low–moderate
Abrasion resistance: Excellent
Casting: Fair as main line (stiffer)
Knot notes: Good — always wet knots before cinching
