Features

  • Name The Futures Son Of Cobra Fibreglass Twin Fins
  • Construction Solid Fibreglass
  • Size X Large (any rider)
  • Fin Height 5.68"
  • Fin Base 5.21"
  • Fin Area 21.75² inches
  • Colour Grey Marble

Description

The Futures Son Of Cobra Fibreglass Twin Fins have been designed and constructed to work in any of the post-modern Twin fins which are literally flying right now, and more specifically in the beautiful Lost X Son Of Cobra, Cobra Killer Twin Fin which is one of Boardshop's most popular boards of the last couple of months!

Constructed from fibreglass with a 7.5° base angle which is perfect for boards like the Cobra Killer with deep double concaves. These fins benefit from solid fibreglass construction with a balanced base and height providing maximum drive, while the finer tip delivers release and spring off the top.

Delivery & returns

  • For collection (up to 17:30) from Mon 20 Jul 2026

    Collection at Boardshop

    FREE

  • For delivery between Thu 23 Jul 2026 and Mon 27 Jul 2026

    Royal Mail 3 - 5 Working Days

    £3.99

  • For delivery on Tue 21 Jul 2026

    DPD Next Working Day

    £6.99

  • Nominated Day

    £6.99

  • For delivery on Sat 25 Jul 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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At Boardshop we all surf, so we are able to give you real advice based on experience. It’s more than likely we’ve surfed this board, so give us a call or drop us an email using the form.

You can always call us on the following number
We are open Monday to Friday 8:30am to 5:30pm

UK 01243 674250

Outside UK 0044 (0)1243 674250

Why buy from Boardshop

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Futures Son Of Cobra Fibreglass Twin Fins X Large - Grey Marble

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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.

Feedback from the riders

5 out of 5 stars
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Mark Eley
Verified buyer
Great service as usual
It’s easier for me to order direct from the Boardshop than have the hassle of overcrowded road and finding parking in Cornwall.
The crew at Boardshop always give you plenty of info regarding your order and it’s super fast delivery, great prices too!!

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