Yuki 3G Invisible is one of the most popular monofilament lines among UK sea anglers. Here’s our complete guide covering every spool size, breaking strain, and use case.

Introduction: Why Yuki 3G Has Become the Go-To Mono for UK Sea Anglers

Ask a group of experienced UK sea anglers what mono they trust, and Yuki 3G Invisible will come up time and again. It's been a staple on UK beaches, piers, and boats for years — and for good reason. The third generation of Yuki's invisible nylon line combines high-performance fluorine coating, ultra-low memory, and exceptional abrasion resistance into a line that simply works, session after session.

Whether you're beach casting for cod, float fishing for bass, building rigs and traces, or looking for a heavy shock leader, there's a Yuki 3G product for the job. In this guide, we'll walk you through the full range, explain which spool size and breaking strain suits which application, and help you choose the right line for your fishing.

What Makes Yuki 3G Different?

The "3G" stands for third generation — and the improvements over earlier Yuki lines are significant. Here's what sets the 3G apart:

• Fluorine coating for near-invisibility — the unique fluorine process gives the line an ultra-clear finish that's virtually invisible underwater. In clear water conditions where fish are line-shy — bass, mullet, and flatfish in particular — this can make a real difference to your catch rate.
• Zero memory — one of the most common complaints about cheap mono is coiling and memory, which causes tangles and reduces casting distance. Yuki 3G has no memory, sitting flat on the spool and coming off cleanly cast after cast.
• High abrasion resistance — UK sea fishing means rocks, rough ground, mussels, and barnacles. Yuki 3G is built to handle it, with a toughness that keeps it fishing even after contact with abrasive surfaces.
• UV and saltwater resistant — saltwater and UV light are the enemies of fishing line. Yuki 3G is specifically formulated to resist both, meaning it maintains its strength and integrity over a full season of use.
• Excellent knot strength — a line is only as strong as its weakest knot. Yuki 3G knots well with standard sea fishing knots (uni knot, blood knot, half blood knot), giving you confidence that your connection will hold when it matters.
• Smooth casting — the consistent diameter and smooth finish means the line flows off the spool with minimal friction, contributing to greater casting distances.

The Full Yuki 3G Range: Which Spool Size Do You Need?

Yuki 3G Invisible is available in five spool sizes, each suited to different applications and budgets. Here's a breakdown:

50m Spools — £6.80–£7.80

The 50m spools are ideal for building rigs, snoods, and hook lengths. At this length, you're not filling a reel — you're cutting off precise lengths for terminal tackle. Available from 0.08mm (2.5lbs) right up to 0.26mm (14.9lbs), the 50m range covers everything from ultra-fine float fishing hook lengths to heavier snood material for cod and bass rigs.

The finer diameters (0.08–0.12mm) are perfect for float fishing hook lengths targeting mullet, garfish, and mackerel. The mid-range (0.148–0.203mm) suits general sea fishing snoods and traces. The heavier end (0.23–0.26mm) works well for heavier rigs targeting cod, bass, and rays.

150m Spools — £9.70–£13.99

The 150m spools are the sweet spot for many sea anglers — enough line to fill a smaller fixed spool reel or top up a larger one, at a very reasonable price. The range extends up to 0.40mm (40lbs), making this the go-to option for heavier shore fishing applications.

The 0.309mm (20lbs) and 0.40mm (40lbs) variants are particularly popular for beach casting mainline on fixed spool reels, where you want a strong, abrasion-resistant mono that can handle the rigours of rough ground fishing.

300m Spools — £13.70–£22.50

The 300m spools are the most popular choice for filling reels — and every pack includes a free spool band, a nice touch. With 300m you can fill most fixed spool reels to capacity, with enough left over for a re-spool mid-season if needed.

The range runs from 0.16mm (7.5lbs) up to 0.496mm (65lbs), giving you an enormous choice of breaking strains for different applications:

• 0.16–0.23mm (7.5–12.5lbs) — light shore fishing, float fishing, lure fishing mainline
• 0.26–0.30mm (15.5–20lbs) — general beach casting, bass and flatfish fishing
• 0.37–0.40mm (32–40lbs) — heavy beach casting, rough ground cod fishing
• 0.46–0.496mm (46–65lbs) — very heavy shore fishing, conger, large rays

1000m Bulk Spools — £39.99–£59.95

The 1000m bulk spools are designed for clubs, tackle shops, or individual anglers who fish regularly and want to buy in bulk for maximum value. Available in heavier breaking strains from 0.26mm (15lbs) up to 0.496mm (63.5lbs), these are ideal for filling multiple reels or keeping a large stock of mainline on hand throughout the season.

2000m Bulk Spools — £30.90–£47.99

The 2000m bulk spools represent the best value per metre in the entire Yuki 3G range. Available from 0.12mm (4.4lbs) to 0.26mm (14.9lbs), these are perfect for tackle shops, fishing clubs, or dedicated anglers who get through a lot of lighter line — ideal for snood material, float fishing, and lighter shore fishing applications.

Yuki 3G Shock Leader — 100m Spools

No beach casting setup is complete without a shock leader, and the Yuki Invisible 3G Shock Leader is one of the best available for UK sea anglers. Available in five heavy breaking strains on 100m spools:

• 40lbs / 0.405mm — £8.76
• 60lbs / 0.496mm — £10.53
• 80lbs / 0.60mm — £11.41
• 109lbs / 0.80mm — £12.99
• 130lbs / 0.90mm — £14.99

The fluorine process gives the leader near-invisibility even at these heavy diameters — important when fishing clear water marks where fish might be spooked by a thick, visible leader. The extra strong construction handles the shock of powerful casting and the abrasion of rough ground without issue.

Which shock leader strength do you need? A general rule of thumb is 10lbs of leader strength per ounce of lead. So for a 4oz lead, use a 40lbs leader; for a 6oz lead, use a 60lbs leader. For very heavy casting or rough ground, step up one size for extra security.

Choosing the Right Yuki 3G for Your Fishing

Here's a quick reference guide to help you pick the right product:

• Float fishing / light shore fishing — 50m or 150m spool, 0.08–0.16mm (2.5–7.5lbs)
• General beach casting mainline — 300m spool, 0.26–0.37mm (15–32lbs)
• Heavy rough ground / cod fishing — 300m or 1000m spool, 0.37–0.46mm (32–46lbs)
• Rig building / snoods / hook lengths — 50m spool in appropriate diameter for target species
• Shock leader — Yuki 3G Shock Leader 100m spool, 40–130lbs depending on lead weight
• Bulk buying for clubs or regular anglers — 1000m or 2000m bulk spools

The Verdict

Yuki 3G Invisible is one of the most complete monofilament lines available to UK sea anglers. The combination of near-invisibility, zero memory, high abrasion resistance, and UV/saltwater toughness makes it a genuine all-rounder that performs across a huge range of sea fishing applications. The fact that it's available in such a wide range of diameters, breaking strains, and spool sizes means you can use Yuki 3G for everything from ultra-fine float fishing hook lengths to heavy shock leaders — all from the same trusted line.

At the price points on offer, it's also exceptional value — particularly the bulk spools for regular anglers.

Shop the Full Yuki 3G Range

👉 Yuki 3G 50m Spools — from £6.80
👉 Yuki 3G 150m Spools — from £9.70
👉 Yuki 3G 300m Spools — from £13.70
👉 Yuki 3G 1000m Bulk Spools — from £39.99
👉 Yuki 3G 2000m Bulk Spools — from £30.90
👉 Yuki 3G Shock Leader 100m — from £8.76

And browse the full Yuki Fishing Tackle collection and our complete Fishing Line range for everything you need on the water.

Published by Shut Up And Fish Ltd | Your UK Sea Fishing Specialists

Tags

3G fishing line invisible line monofilament sea fishing shock leader UK fishing Yuki yuki 3g

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