Features

  • Name The Firewie Manncave Tri Fins
  • Construction Fibreglass
  • Size Large (Approximate rider weight 75kg+)
  • Side Fin Height/ Base 119mm/118mm
  • Centre Fin Height/Base 119mm/ 118mm
  • Colour Grey

Description

Trust Kelly to reignite innovation flame in the fin game. The G.O.A.T is back in the game, the FirewireManncave fin set from the legend Dan Mann is a cracker.

Designed to be versatile in various wave types and board types, the Manncave is a balanced or neutral template that sits firmly in the rake world with a slightly more pivot-oriented outline. This is Dan's go-to fin that he uses to test all of his new shapes from grovelers up to mids and guns - it's the variable he keeps constant during R&D. A good fin template will deliver both drive down-the-line and pocket maneuvers, and the foil has to be perfect. This fin set is constructed from a traditional fiberglass layup, offering a familiar and welcoming flex pattern underfoot.

So… why has Kelly invested so much time and research into this, two main goals, firstly, a better construction for fins, to give more performance and response. Secondly, there is an ECO side to his rational. Diving into the construction first, these surfboard fins are made up of a Carbon Fibre Twill, paired with a non-woven carbon veil and a recycled P.E.T core which when all engineered together gives you a flex pattern that allows you to rip through turns , they don’t feel too stiff and the clever materials give you more hold the harder you push and more bounce back when coming out of a fast turn.

Secondly, by creating a fin that uses recycled materials and that screws in, the aim is to reduce the losing of fins. This combined with the fact these fins are so light that they float means they should last you forever and you should not have them falling out of your board.

In summary, KS has delivered one all fronts, his new fins will make a lot of incredibly happy surfers. Get yours now.This Single Tab version is compatible with all Futures fin boxes.

Delivery & returns

  • For collection (up to 17:30) from Mon 15 Jun 2026

    Collection at Boardshop

    FREE

  • For delivery between Thu 18 Jun 2026 and Mon 22 Jun 2026

    Royal Mail 3 - 5 Working Days

    £3.99

  • For delivery on Tue 16 Jun 2026

    DPD Next Working Day

    £6.99

  • Nominated Day

    £6.99

  • For delivery on Sat 20 Jun 2026

    Saturday Delivery

    £24.99

 

What if I need to send something back for exchange or refund? 

 

It's not a problem, all purchases on Boardshop.co.uk are covered by a 14 day exchange or refund guarantee. If you are not completely satisfied with your purchase it can be exchanged or the cost of the item(s) refunded. In case of all returns you will need to contact us for a returns number.

 

Please click here for further information.

 

Prices shown are for mainland UK delivery. For full worldwide delivery info please click here.

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Firewire Manncave Tri Fins Large - Grey

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Overview

Key features and details

Solid, Simple, Secure

The Futures fin system uses a single-box + screw design, giving a super solid connection between fin and board. That means zero wiggle, loads of drive, and a really direct feel under your feet. It’s a favourite among powerful surfers who like to push hard through turns, and once they’re in, they’re staying put, no unwanted mid-session surprises.

Will these fit my Surfboard?

Made for Futures fin boxes, the single long slot system used on loads of modern performance surfboards. If your board has Futures boxes, you’re good to go. These won’t fit FCS I or FCS II systems, so if your board has two smaller slots instead of one long box, you’ll want to check out our FCS options instead.

Still unsure? Drop us a message with your board model and we’ll point you in the right direction.

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