Channel Islands Tech 1 Large 1 Tab Fins

Channel Islands Tech 1 Large 1 Tab Fins 5 5 2
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Channel Islands

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Family Owned Since 1980. Online since 1999.



Opening the door of possibilities, the Channel Islands Tech 1 Fins allow you to draw bold new lines you have yet to explore. Allowing for ultimate control, CI fins offer a predictable and consistent feel underfoot while fulfilling the high demand for the drive and release needed in professional level surfing. Al Merrick has refined his designs to meet the needs of surfers today but has remained true to the original layout he developed in the 80's. The Tech 1 fins offer a wide base, long rake and his signature smaller center fin that frees up the tail for a more rippable approach. Using proven templates, modern technology and Channel Islands quality, the Tech 1 Fin series has the performance you want and all the versatility you need to do big things in the water.


  • Size: Large
  • Fins in set: 3
  • Ideal Conditions: Tech 1 is designed to perform in a variety of conditions and has a wide base for drive off of the bottom, more rake for big carves, and a finer tip for release off of the top.
  • Material: RTM polyester resin and fiberglass construction. Unique core reduces resin content and weight. Proprietary fiberglass weave and orientation is designed for maximum response and performance. Versatile high performance option.
  • Performance: The Tech 1 honeycomb hexagonal core combined with the Al Merrick template offers a medium flex pattern, making this fin a versatile option for a wide range of surfing abilities. Designed with riders 165lbs and over in mind.

Tech Specs

Center Fin:

  • Height: 4.48 in
  • Base: 4.61 in
  • Area: 15.20 sq in
  • Foil: 50/50

Side Fins:

  • Height: 4.72 in
  • Base: 4.63 in
  • Area: 15.93 sq in
  • Foil: Flat


Channel Islands Tech 1 Large 1 Tab Fins Great finsReview by Nektonic Nektonic
I've tried several different sets of tri fins over the years (performers, JF, occy, EA, F6, accelerators, h3 nexus, HS1, chilli.....just to name a few) and these are the best fins by far. Great drive through turns, and while they provide good hold they also release when you want them to.
(Posted on 8/20/2018) 2018-08-20
Channel Islands Tech 1 Large 1 Tab Fins Best finsReview by Joe Joe Joe Joe
Great fins for control in any type of wave. Fast, and most important they hold. This fin is what most pros on the WSL use. A must for a surfer that doesnt have a whole lotta cash for several fins.
(Posted on 4/16/2018) 2018-04-16

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We understand that when purchasing gifts, returns and exchanges can be necessary, which is why for the Holidays we are extending our Return Policy so that anything purchased as a gift this Holiday Season is eligible to be returned by the end of January. If you are not 100% satisfied with your product you may return it for a full refund, or exchange by the end of the month of January 2019.

Please make sure your wetsuit fits before taking it in the water. We are not able to take returns or exchanges on used wetsuits.

Please reference our full Return Policy.

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