Surfers around the world have a problem with lacklustre waves and Channel Islands has the Solution! We have teamed up with CI to produce a brand new Tri Fin Set for their new Solution model.

Product Overview
Material
Size

The FCS II Channel Islands Solution PC Tri Fins are designed in collaboration with Channel Islands Surfboards and based on the proven CI Upright template by Britt Merrick. Built to complement the CI Solution model and beyond, this fin set delivers speed, responsiveness, and tight turning performance across a range of wave types.

The upright template promotes quick direction changes and vertical surfing, making it ideal for punchy, hollow waves and critical sections. At the same time, the fuller profile from base to tip provides the drive and control needed to push hard through turns, while still maintaining a loose, free-feeling release off the top.

Designed to suit boards with a more relaxed rocker, this fin excels in generating immediate start-up speed and acceleration from take-off—perfect for everyday conditions where waves may lack power.

Constructed in Performance Core material, these fins offer a lightweight feel with a progressive flex pattern, delivering a balance of drive, control, and responsiveness.

Features & Benefits
- Based on the proven CI Upright design by Britt Merrick
- Upright template for tight turns and vertical performance
- Fuller profile for added drive and control
- Fast start-up speed and acceleration from take-off
- Lightweight construction with responsive, versatile flex
- Ideal for performance shortboards and hybrid models
Performance Feel

The Channel Islands Solution Tri set feels fast, lively, and highly responsive.

The upright template allows for tight, vertical turns and quick transitions in the pocket, while the fuller outline provides the confidence to push hard through manoeuvres. Off the bottom, the fin generates immediate speed, and off the top, it releases cleanly for a loose, responsive feel.

The result is a balanced fin that blends speed, control, and freedom—perfect for surfers looking to maximise performance in everyday and punchy conditions alike.

Fin Template: Reactor

Built for speed, tight turns, and snaps.

The Reactor family features a more upright template with less rake, allowing for quicker direction changes and a more responsive, vertical approach to surfing. Ideal for surfers who like to stay in the pocket and perform tight, critical manoeuvres.

Ideal Conditions: Beach Break

Performs particularly well in:
- Hollow, steep waves
- Punchy beach breaks
- More critical surf conditions
Board Compatibility
- Designed to fit the FCS II Fin System.
- Recommended for CI Performance Boards, particularly the CI Solution
Performance Core

Performance Core (PC) fins are made using a multi-layered resin transfer moulding process. The flex pattern in PC fins extends progressively from the base through to the tip, helping the surfer to maintain drive and hold through a turn. This versatile fin material is light and can be used in a variety of different conditions.

MEDIUM (65kg - 80kg / 145 - 175 Lbs)
LARGE ( 75kg - 90kg / 165 - 200 Lbs)

Fin	Base (inches)	Base (mm)	Depth (inches)	Depth (mm)	Area (inches)	Area (mm)	Sweep Deg°	Foil
MED Side	4.39	111.4	4.59	116.4	15.04	9700	30.3°	Flat
MED Ctr	4.39	111.4	4.59	116.4	15.04	9700	30.3°	50/50
LRG Side	4.50	114.2	4.70	119.3	15.79	10190	30.3°	Flat
LRG Ctr	4.50	114.2	4.7	119.3	15.79	10190	30.3°	50/50

View the FCS Fin Data page for Base/Depth/Area/Foil information.

Channel Island Solution

FCS II Channel Islands Solution PC Tri Fins

FCS II Channel Islands Solution PC Quad Rear Fin Set