Keel a fish

4 min read · Different feel

Keel a fish

How a fin change transforms the board you already own.

A fish was designed for keel fins. The flat tail, the wide point, the swallow — they all want a long base, deep-foiled fin you can drive off. Modern thrusters made fish 'easier' to surf. Keels make fish feel right.

Lock-in through bottom turns. A drawn-out cutback. Acceleration off the lip. A keel has more drive than any twin you'll ride. The trade is turn radius — keels carve, they don't pivot. That's the whole point.

If you've only ever surfed your fish on twins or quads, you've never really surfed your fish. Drop a keel set in. Then go find a peeler.

The mechanics behind the feel

Why it works

The mechanics behind the feel

  • Long base = drive through every section Deep-foiled = lock-in on bottom turns Drawn-out cutback over a tight pivot Best with a fish, retro fish, or quad-tail Available on Futures-style and FCS I-style bases

Best with these boards

If your board is one of these, this fin will change how it surfs.

Log (9'+)

Log (9'+)

Single, twin set, or twin + nose-rider

Mid-length (7'–9')

Mid-length (7'–9')

Single, 2+1, or twin set

Fish / Twin (5'5"–6'4")

Fish / Twin (5'5"–6'4")

Twin, keel, or quad set

Shortboard (5'10"–6'4")

Shortboard (5'10"–6'4")

Thruster or quad — see Fit & shipping guide

What to try

Longboard | Resin | US BoxBest with a 9'+ log

Longboard | Resin | US Box

$94.00
Keel Fins | Resin | FuturesFor Futures-style twin-fin boxes

Keel Fins | Resin | Futures

$123.00

From people who tried it

“Keel’d my old fish, lost the spin-out, kept the speed.” “Anya R. · Cornwall”

Common questions

  • Will this fit my board?

    Most likely, yes. Check the fin system on your board's centre box or side bites — US Box, Futures-style, or FCS I-style. Each product page lists exactly which system it fits. If you're not sure, our Fit & shipping guide will narrow it down in 30 seconds.

  • How long does it take to ship?

    In-stock and made-on-demand orders ship in 7–14 business days. Preorders ship with the next batch — typically 4–8 weeks. Each product page shows the current stock state and batch progress. We email you when the order moves through each stage.

  • What if I don't like the feel?

    Unused fins in original condition can be returned within 30 days for a full refund or exchange. Tried them in the water and they're not for you? Email us — we'll figure something out.

  • Are these proper fibreglass fins?

    They are proper fibreglass fins with visible weave, clean colour, and hardware where the system needs it. The point is simple: quality fins should feel good, look good, and not be priced like jewellery.

  • Why are some fins priced lower than others?

    Some fins are in stock, some are made on demand, and some colours/templates may open as preorders. The product page shows the current lead time before you buy. Read the full Feel Guide for context.

Keep going

Try another feel

GUIDE

Read the Feel Guide.

FIND

Try the Fit & shipping guide.

Shop all fins →