Sunline System Shock Leader Nylon Tough-Flexx Line
Sunline System Shock Leader Nylon Tough-Flexx Line - 240lb 50m is out of stock and on order, it will ship as soon as it arrives. Most items take 2-5 days to get and you'll be contacted before the order is processed.
Delivery & Shipping
Delivery & Shipping
Do you offer free shipping?
We offer free domestic shipping on most orders over $150 subtotal. This excludes oversized and bulky items such as rods, blanks, gaffs, some tackle boxes, lobster nets, landing nets and other large items. Any 1 piece rod over 7'10" in length often incurs the biggest oversize fees charged by domestic shipping companies although we do have lower rates via other carriers on the West Coast. Any additional shipping fees will be automatically calculated at checkout before any billing is done.
What countries do you ship to?
We currently ship products within the US and to almost every country in the world, covering all available destination via UPS and DHL. International shipping times depend on the products and destination. Shipping rates are automatically calculated at checkout, for most countries we also collect Duties and Taxes and prepay them so you do not have to deal with the carrier or customs.
How long will it take to get my order?
Standard shipping can take 3-8 business days depending on location and order volume. If you have requested spooling on your reel or rigging on your lures then it could take an additional day or two. Next day & 2 day shipping is available on most domestic orders (for an additional charge). Orders placed after 12pm Pacific Standard Time will be processed the next business day.
What carriers do you ship with?
We work with UPS, FedEx, US Postal Service, GLS and DHL. When your order qualifies for free shipping or has a rod that qualifies for discounted shipping we reserve the right to choose which carrier it is sent with, otherwise you can pick the service you want. UPS Ground ranges from 1 to 7 day delivery, USPS Priority Mail is typically 1-3 days but is not a guaranteed express service, and USPS Ground Advantage takes roughly 3-7 business days. Longer rods are generally sent via GLS unless otherwise specified, this service ranges from 1 - 10 days.
⚠ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and or reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Sunline System Shock Leader Nylon Tough-Flexx Line - 240lb 50m is out of stock and on order, it will ship as soon as it arrives. Most items take 2-5 days to get and you'll be contacted before the order is processed.
Heavy nylon shock leader has to absorb a sudden load without becoming a stiff cable at the knot. Sunline Tough-Flexx balances strength and controlled stretch for big-game connections, then adds the flexibility that makes heavy line easier to work with. In this range—130 to 330 lb—think heavy topshots and wind-on leaders, crimped rigs for nighttime bluefin, and kite-bait leaders where a forgiving nylon absorbs the strike.
That suppleness is most noticeable as the diameter goes up. Knots form with less fight, and braid-to-leader wraps can cinch down cleanly so the connection can use more of the line's available strength. Phantom Gray coloring is designed to suppress scattered light and make the leader less conspicuous in the water.
Why Tough-Flexx
- Balanced strength and stretch: engineered to absorb shock while maintaining durability under load.
- Supple handling: helps make heavy leader knots easier and more consistent.
- Phantom Gray color: designed to reduce scattered light and line presence.
- UV-resistant construction: limits ultraviolet degradation, a common weakness of nylon.
- Single Resin Processing: a functional resin coating improves the base line's performance.
- Parallel winding: reduces line set and surface irregularities for straighter payout and a smoother feel.
- Wide spool band: keeps the remaining line controlled while letting it feed smoothly.
Available Sizes
| Strength | Length | Diameter |
|---|---|---|
| 130 lb | 50 m | 0.910 mm |
| 150 lb | 50 m | 1.050 mm |
| 180 lb | 50 m | 1.170 mm |
| 210 lb | 50 m | 1.280 mm |
| 240 lb | 50 m | 1.390 mm |
| 270 lb | 30 m | 1.480 mm |
| 300 lb | 30 m | 1.570 mm |
| 330 lb | 30 m | 1.660 mm |
Strength figures are Sunline’s published reference values rather than a US-style test rating. Color: Phantom Gray. Made in Japan.
Payment & Security
Payment methods
We ensure secure processing of your payment information and do not retain or have any access to your credit card details.


