Westin W6 ST5 Fluorocarbon 35m 0.62mm 25kg Clear

Westin W6 ST5 Fluorocarbon — Maximum Suppleness for Heavy-Duty Leaders

The Westin W6 ST5 Fluorocarbon in 0.62 mm / 25 kg delivers a rare combination of serious breaking strain and exceptional softness — purpose-built for anglers who need a powerful yet manageable leader material in demanding conditions.

Soft, Supple Construction That Ties Knots With Ease

The ST5 (Suppleness Tier 5) rating places this line at the flexible end of Westin's hardness spectrum. That softness pays dividends at the vice: knots seat cleanly, cinch evenly, and hold their rated strength. Low line memory means the leader lays straight off the spool without coiling or twisting, reducing tangles and improving presentation.

Incredible Abrasion Resistance at a Smaller Diameter

Westin's exclusive production process allows for smaller diameters than standard fluorocarbon leaders of equivalent breaking strain, without sacrificing tensile or knot strength. At 0.62 mm and 25 kg, this variant is well suited to pike, large predators, and saltwater species where contact with rocks, reefs, structure, or toothy jaws is inevitable. The fast-sinking nature of 100% fluorocarbon keeps leaders straight and under the surface, reducing bow and improving bite detection.

Choose the Right Variant

The W6 ST5 Fluorocarbon range spans a wide spread of diameters, breaking strains, and spool lengths to cover everything from finesse freshwater fishing to heavy saltwater applications. Select based on your target species, rig, and available rod/reel setup.

0.14 mm / 1.3 kg — 50 m: Ultra-light freshwater; trout, perch, small lure finesse rigs
0.17 mm / 1.7 kg — 50 m: Light freshwater/saltwater; small species, drop-shot, micro-jigging
0.19 mm / 2 kg — 50 m: Light general-purpose; finesse rigs, clear water
0.219 mm / 3.2 kg — 50 m: Versatile lighter leader; zander, trout, light sea fishing
0.26 mm / 4.3 kg — 50 m: Medium freshwater/saltwater; bass, sea trout, lighter predators
0.30 mm / 5.9 kg — 50 m: Medium-weight all-rounder; perch, zander, inshore saltwater
0.343 mm / 7.7 kg — 35 m: Stepped-up freshwater/saltwater leader for larger predators
0.38 mm / 9.2 kg — 30 m: Pike, cod, inshore species; heavier structure fishing
0.44 mm / 11.1 kg — 25 m: Heavier pike and predator leaders; structured swims
0.52 mm / 14.6 kg — 35 m: Pike, large saltwater species; jigging, boat fishing
0.62 mm / 25 kg — 35 m: Heavy predator and saltwater leader; pike, large coastal species, tough structure
0.92 mm / 45.1 kg — 20 m: Offshore/big-game leader; large sea fish, heavy-duty boat rigs
1.05 mm / 53.5 kg — 20 m: Big-game and offshore; shark, ray, large pelagic species
1.20 mm / 62 kg — 20 m: Maximum-strength offshore leader; heaviest sea applications