Channel Islands Fins - Tech 3 Large - Yellow/Carbon

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Channel Islands

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Family Owned Since 1980. Online since 1999.



The Tech 3 Large Fin is a widely popular performance fin template from legendary shaper Al Merrick. This large template provides tons of drive without compromising powerful maneuvers in critical sections. Available to you in Tech 3 construction and made in the USA by none other than Channel Islands Surfboards.


  • Size: Large
  • Fins in set: 3
  • Ideal Conditions: Designed with riders 165lbs and over in mind
  • Material: Proprietary bi-axial carbon/technora core provides engineered flex and reduces resin content and weight.
  • Performance: The Tech 3's uni-directional carbon allows for twist while maintaining stiffness. The combination of material and engineering provides the maximum pop and projection. Al's design creates drive from the rake and base, while allowing pivot with the narrow tips and smaller center fin.

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


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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.

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