Surfboard Fins

Surfboard Fins

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Fins have a huge impact on the way your surfboard performs in the water, the perfect fin set will complement your board and elevate your style of surfing. We have a wide-ranging selection of thruster, quad, twin, retro, and longboard fin options from FCS, Futures, Captain Fin Company, True Ames, and the beautiful US-manufactured Fins Unlimited.

If you need to get more bite in the turns, throw the tail, drive off the bottom or generate down the line speed, we're sure you'll find something to fit your need. If you're stuck on the details, don't hesitate to get in touch with us.

Check out our detailed guide to surfboard fins.



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FCS II quick-release fins are secured without the need for grub screws or any tools.

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Sometimes referred to as single tab fins, Futures are secured with a single grub screw.

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Fins compatible with the classic plate and screw longboard fin box.

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The original dual tab fin system FCS fins are also compatible with FCSII plugs.

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All the bits and pieces that go along with fins, such as screws, tools and cases.

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All productsChannel Islands

Channel Islands CI Single Fin

A general sizing guideline based on board length: 8” for 6’7” & under 8.5” for 6’8” to 7’5” 9” for 7’6 & over The CI Single-Fin is also an ideal...
From £89.95
All productsFCS

FCS II Pivot II PG Longboard Fin - Charcoal/Grey

Pivot in the pocket, lock the rail on the wave face and run the nose Upright fin with minimal sweep and base ​Loose fin for performing tighter turns ​Bigger sizes...
From £84.95
All productsFCS

FCS II Panda Keel Performance Glass Fin Set - M/L

Designed with plenty of curve in the leading and trailing edge fore smooth rail to rail transitions. A thicker, flat foil provides grip through big turns on open faced waves.
£99.95
All productsFCS

FCS II Panda Twinzer Performance Glass Fin Set - S/M

Drivey Twinzer Template Stable and predictable feel Use with additional Twinzer fins Recommended for Twin fins and boards with twinzer set ups Dimensions Fin Base (inches) Base (mm) Depth (inches)...
£99.95
All productsFCS

FCS II MR Neo Glass Twin + 1 Fin Set - XL - Smoke Swirl

Mark Richard's signature twin fin template. These fins create unreal drive and speed. The small centre fin adds that extra control while still maintaining the freedom of a twin fin...
£69.95
All productsFutures Fins

Futures Fins F6 Thermotech Tri Fin Set - Medium

Made in Huntington Beach, the Thermotech product line does not have the traditional plastic feel of a composite fin. Instead, they have a consistent flex that creates drive and release...
£34.95
All productsFutures Fins

Futures Fins 3/2 Vector Alpha Tri Fin Set - Medium

Template Category: Neutral (all-around and versatile) Construction: Alpha Speed Generating Works in all wave types and conditions Size: Medium 55-80kg (125–175 lbs) Vector foil features a concave surface on the inside...
£69.95
All productsNew Products

3 Fin Option for Surfboards

At Down the Line Surf Co. we offer you the option to buy a set of Genuine FCS II or Futures Fins 3 fin set alongside your brand-new surfboard at...
£29.95
All productsFutures Fins

Futures Fins Jordy Techflex Tri Fin Set - Large

Template Category: Rake (drawn-out & drivey) Construction: Techflex Ride Number: Speed Control – 3.2 Suggested Wave Type: Open face / Point-break Size: Large 75kg+ (165+ lbs) The Techflex construction with the flat...
£129.95
All productsFutures Fins

Futures Fins Lost Mayhem 3.0 Tri Fin Set - Medium

Template Category: Neutral (all-around and versatile) Construction: Honeycomb Ride Number: Balanced 5.4 Size: Medium 55-75 kg (125-175 lbs) Side Fins Center Fin Area 15.18 14.93 Height 4.59 4.55 Base 4.50...
£129.95
All productsFutures Fins

Futures Fins Lost Mayhem 3.0 Tri Fin Set - Large

Template Category: Neutral (all-around and versatile) Construction: Honeycomb Ride Number: Balanced 5.4 Size: Large 75+ kg (165+ lbs) Side Fins Center Fin Area 16.25 15.98 Height 4.75 4.71 Base 4.66 4.62 Angle...
£129.95
All productsFutures Fins

Futures Fins F6 Honeycomb Quad Set - Medium

The F6 Honeycomb is a scaled up version of the popular F4 template, which is one of the most well-balanced fins Futures creates. The F6 Honeycomb's medium flex pattern creates...
£124.95
All productsFutures Fins

Futures Fins F4 Honeycomb Quad Fin Set - Small

The F4 Quad a high-performance quad set suited for smaller surfers or boards with boxes set closer to the rails The F4 quad is an excellent option for high-performance shortboards...
£124.95
All productsFutures Fins

Futures Fins Christenson Honeycomb 5 Fin Set

Template Category: Pivot (tight turns quick) Construction: Honeycomb Ride Number: Balanced: 5.9 (tri) / 5.0 (quad) Suggested Wave Type: Beach breaks (tight in the pocket) Size: Medium (125 – 175...
£169.95
All productsFutures Fins

Futures Fins Twiggy Fiberglass Big Wave 5 Fin Set

Template Category - Rake (drawn-out drivey) Construction: Fiberglass Ride Number: Speed Control – 2.8 (tri) / 2.6 (quad) Suggested Wave Type: Open face | Point-break Size - 75kg+ Large (165+...
£169.95
All productsFutures Fins

Futures Fins Christenson Fiberglass Twin - White / Brown

Fibreglass: Fibreglass is stiff and tough for heavy conditions or surfers that appreciate very stiff fins. Dimensions: Side Fins Area 20.34 Height 5.40 Base 5.13 Foil FLAT Angle 5.0
£104.95
All productsFutures Fins

Futures Fins Christenson Fiberglass Keel - Brown/White

Fibreglass: Fibreglass is stiff and tough for heavy conditions or surfers that appreciate very stiff fins. Dimensions: Side Fins Area 23.42 Height 4.91 Base 6.50 Foil FLAT Angle 3.0
£104.95
All productsFutures Fins

Futures Fins Aipa x Mayhem Fiberglass 5 Fin Set

Template Category: Rake (drawn-out & drivey) Construction: Fiberglass Ride Number: 2.7 (tri) / 3.0 (quad) Side Fins Center Fin Rear Fin Area 16.52 14.72 10.63 Height 4.84 4.65 3.83 Base 4.87...
£189.95
All productsFutures Fins

Futures Fins Rasta Alpha Twin+1 Fin Set

The Rasta Twin was developed to compliment Dave Rastovich’s classic surfing style. Similar in size to the T1, the Rasta Twin has a unique leading edge that allows smooth rail...
£69.95
All productsFutures Fins

Futures Fins John John Alpha - Small

Template Category: Neutral (all-around & versatile) Construction: Alpha (NetPlus) Ride Number: Balanced – 6.3 Suggested Wave Type: All types / All conditions Size: Small 45-60kg (95 – 135 lbs) Dimensions: Side Fins Center Fin...
£69.95
All productsFutures Fins

Futures Fins 3/2 Vector Alpha Tri Fin Set - Large

Template Category: Neutral (all-around and versatile) Construction: Alpha Speed Generating Works in all wave types and conditions Size: Large 75+kg (165+ lbs) Vector foil features a concave surface on the inside of the...
£69.95
All productsFCS

FCS II Performer Performance Glass Keel Fin Set - L/XL - Black

The highest surface area keel in the FCS range Suits traditional twin fish models Drive + control Designed to fit the FCS II Fin System Performance GlassPerformance Glass (PG) fins...
£99.95
All productsFCS

FCS II Performer Performance Glass Quad Split Keel Fin Set - L/XL - Black

This fin set features excellent acceleration from the take-off and plenty of down-the-line speed and drive. When turning it delivers a reliable feel with a level of response that allows you...
£139.95
All productsFCS

FCS II Mid Carver PG Tri-Fin Set - XL

Thruster set for mid-lengths Carver XL Sides + Performer Large Centre Ideal Conditions Open face, down-the-line waves, particularly good in point and reef breaks. Board Types Designed to fit the...
£99.95
All productsFCS

FCS II Connect Neo Glass Eco Longboard Fin - Smoke

Features: Colour: Smoke Neutral, well-balanced template Versatile, high performance Longboard fin for all conditions Offers a combination of drive, speed and response for modern longboarding Seamlessly connect turns and move up...
£69.95
All productsFCS

FCS II Clique PG Longboard Fin - Charcoal

Features: Versatile, well-balanced template Shorter base makes it highly manoeuvrable ​​Slim tip provides a high level of forgiveness out of the turn ​Suited to traditional and performance longboards. 2 +...
£94.95
All productsFCS

FCS II Christenson Twin Fin Set - Blood Red

Features: Designed by Chris Christenson Suitable for high performance twins to more traditional shapes, the perfect compliment to any twin fin. This set provides smooth and fast down the line...
£99.95
All productsFCS

FCS II Carver PC Tri Fin Set - Large - Eucalyptus

Features: Designed for powerful, drawn-out turns with added hold. Elongated template with high degree of sweep provides exceptional hold off the bottom and when carving on the open face. Ideal...
£94.95
All productsFCS

FCS II Album PG Keel Fin Set - Black/Gold

The high sweep angle maintains a moderate amount of hold and drive, while the tapered tip and low profile eliminate any 'tracking' feel that is sometimes associated with higher area...
£99.95
All productsNew Products

True Ames FM Twinzer Fin Set - Black

"These fins were designed specifically for the pretty oddball placement of my FM surfboard design; over 2" off the rail on mid lengths and nearly parallel; either with or without...
£115.00