Westin W6 ST3 Fluorocarbon 1.2mm 20m 64.2kg Clear

Westin W6 ST3 Fluorocarbon — Heavy-Duty Leader Material for Maximum Holding Power

When the fish of a lifetime runs hard and the structure is unforgiving, you need a leader that refuses to give. The Westin W6 ST3 Fluorocarbon in 1.2 mm / 64.2 kg is built for exactly those moments — a short, powerful spool of pure fluorocarbon designed for big-game setups where breaking strain and abrasion resistance take priority above all else.

Near-Invisible Bite Protection

Fluorocarbon (FC) has a refractive index much closer to water than monofilament, making this leader material significantly less visible to wary fish. That low visibility is especially valuable when targeting line-shy species in clear coastal or inshore water — you get the stealth of fluorocarbon combined with a breaking strain of 64.2 kg that leaves no margin for failure.

Balanced Stiffness with Exceptional Knot Strength

The ST3 rating places this line squarely in the middle of Westin's suppleness scale — stiffer than a soft trace but not as rigid as a bite guard wire. That medium stiffness improves kink resistance and helps the leader turn over cleanly, while the 100% fluorocarbon construction delivers exceptional knot and tensile strength even at this heavy diameter. The fast-sinking characteristic drives the leader and bait down quickly, getting you into the strike zone without delay.

Choose the Right Variant

The W6 ST3 Fluorocarbon (ST = Suppleness Rating) is available in a wide diameter range from 0.14 mm to 1.20 mm, on spools of 20 m, 25 m, 30 m, 35 m, and 50 m. Lighter diameters on longer spools suit general leader and trace use in freshwater and light saltwater; heavier diameters on shorter spools are purpose-built for big-game, heavy jigging, and shark/ray rigs.

0.14 mm / 1.4 kg — 50 m: ultra-light trout, perch, finesse drop-shot traces
0.17 mm / 1.7 kg — 50 m: light spinning, small predators, clear-water finesse
0.19 mm / 2.2 kg — 50 m: light lure fishing, river trout, small LRF species
0.219 mm / 3.4 kg — 50 m: general predator traces, light pike, zander
0.26 mm / 4.5 kg — 50 m: medium predator leaders, perch/zander/bass
0.30 mm / 6.1 kg — 50 m: all-round pike and sea bass leaders
0.343 mm / 7.9 kg — 35 m: heavier pike traces, light saltwater leaders
0.38 mm / 9.3 kg — 30 m: pike, light GT and snapper leaders
0.44 mm / 11.6 kg — 25 m: medium saltwater rigs, strong pike/catfish traces
0.52 mm / 16.4 kg — 35 m: catfish, medium big-game, heavy inshore leaders
0.62 mm / 26.1 kg — 35 m: heavy catfish, reef fishing, light shark traces
0.92 mm / 49.2 kg — 20 m: heavy big-game, large shark/ray, offshore jigging
1.05 mm / 56.5 kg — 20 m: heavy big-game and shark rigs, maximum-strength setups
1.20 mm / 64.2 kg — 20 m: maximum breaking strain in the range; heavy shark, large ray, and trophy catfish rigs where abrasion from rough skin or structure is a serious concern