Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
PRECISE AND REACTIVE: The Performance Core (PC) construction ensures a lively, responsive feel underfoot. Compared to the FCS II Al Merrick Tri-Quad Fin Set, which has a more raked template for drawn-out carves and added stability, the CI Upright is better suited for quick, reactive surfing and fast transitions.
GREAT FOR DIVERSE CONDITIONS: When paired with the Channel Islands Better Every Day board, this setup excels across a range of conditions, providing a dynamic mix of manoeuvrability and speed. Perfect for surfers looking to push their performance. Overall, the CI Upright Tri-Quad set is suited to boards with the more relaxed rocker.
CRAFTED FOR TURNING EASE: We designed the CI Upright because our surfboard range extended well into the hybrid and step-down categories; we needed a fin to maintain response and turning performance, particularly on our boards where the rocker was a little more relaxed and flatter.
Sally Fitzgibbon's signature fin. The smaller centre fin provides an exceptional tail release.
Ideal for beach breaks.
Hollow steep waves, punchy beach breaks.
Curious about how we select the top products for you? Explore How It Works
How do we rank
Our AI-powered platform ranks products using multiple weighted factors from millions of products and user reviews across the web, providing the most valuable and real data. Higher scores rank first.
TRUSTED BY SURFERS: "This fin allows you to gain start-up drive and acceleration really quickly, yet still feel loose and free off the top. Many of our team riders have also gravitated to this fin on their high-performance shortboards and step-ups where they wanted less resistance and the ability to stay right in the pocket". - Britt Merrick
HIGH-PERFORMANCE FIN SET: The upright nature of this template promotes tighter turns - therefore, these fins come to life in punchy, hollow waves and when performing vertical turns. THe CI Upright Fins are adaptable, and will also suit conditions where you need immediate start-up speed from the take off! The full, robust profile of this fin from base-to-tip allows surfers to push hard while still getting that freedom to turn easily.
CRAFTED FOR TURNING EASE: We designed the CI Upright because our surfboard range extended well into the hybrid and step-down categories; we needed a fin to maintain response and turning performance, particularly on our boards where the rocker was a little more relaxed and flatter.
The raked side fins produce exceptional speed and drive, while the smaller centre fin on the medium and large templates offer quick release through turns.
Suited to hollow steep waves and punchy beach breaks. Recommended for performance board with deep concaves and moderate-to-extreme rocker.
Al Merrick's signature template is designed for radical, progressive surfing. The raked side fins produce exceptional speed and drive, while the smaller centre fin on the medium and large template offer quick release through truns.
OverviewDesigned for powerful, drawn-out turns with added hold.
Ideal for power surfers who like to push hard against their fins and draw out their turns.Ideal ConditionsOpen face, down-the-line waves, particularly good in point and reef breaks.Board TypesDesigned to fit the FCS II Fin System.
Elongated template with high degree of sweep provides exceptional hold off the bottom and when carving on the open face.
Tri-Fin Thruster Setup: Provides an ideal balance of speed, drive, and control, suitable for both small and big waves.
Optimized Performance: Featuring a 4.59" depth, 4.39" base, and 15.04 sq. in. surface area, these medium-sized fins deliver both maneuverability and hold, enhanced by 3D twist and roll flex technology.
Lightweight & Durable Construction: Crafted from fiberglass-reinforced nylon, these fins are lightweight yet robust, weighing only 0.46 lbs, and are built to withstand rigorous surfing sessions.​
Discover top deals and categories on AmazonCheck Deals
Curious about how we select the top products for you? Explore How It Works
