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Channel Islands Tech 1 Medium 1 Tab Fins

Channel Islands Tech 1 Medium 1 Tab Fins 5 5 1
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Choose the Channel Islands Tech 1 Fins and rest assured you have a thoroughly tested, developed and proven set up driving you down the line. 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 '80s. 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.

Tech Specs

Center Fin:

  • Height: 4.36 in
  • Base: 4.49 in
  • Area: 14.63 sq in
  • Foil: 50/50

Side Fins:

  • Height: 4.52 in
  • Base: 4.50 in
  • Area: 14.99 sq in
  • Foil: Flat


  • Size: Medium
  • 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 under in mind.


Channel Islands Tech 1 Medium 1 Tab Fins All around performanceReview by Ben Ben
I rode them for the first time in about chest high waves and I'm really happy with these fins. They felt really good during turns. I really noticed the boost in drive over some F6 fins I used the session before. Snaps off the top also felt effortless. Great set of fins.
(Posted on 12/7/2017) 2017-12-07

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Returns are easy! We understand that in some situations returns or exchanges may be necessary. We also want you to be stoked on your purchase. If you are not 100% satisfied with your purchase you may return it for a full refund, or exchange within 30 days of receiving your order. Items must be in new condition with original tags and packaging.

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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