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Al Merrick's 'AM' shaper fin. Raked side fins produce exceptional speed and drive.
Overview
Ideal Conditions
Board Types
Fin Family

Performance Core
Performance Core (PC) fins are made using a multi-layered resin transfer molding 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.
X-SMALL (Under 55Kg / 120 Lbs)
SMALL (55Kg - 70Kg / 120 - 155 Lbs)
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 |
| XS | 4.26 | 108.1 | 4.26 | 108.0 | 13.02 | 8400 | 35.5° | Flat |
| SML | 4.37 | 111.0 | 4.37 | 111.0 | 13.71 |
8846 | 35.5° | Flat |
| MED (Side) | 4.57 | 116.0 | 4.53 | 115.0 | 14.89 | 9608 | 36.6° | Flat |
| MED (Ctr) | 4.33 | 110.0 | 4.41 | 112.0 | 13.72 | 8852 | 35.0° | Flat |
| LRG (side) | 4.61 | 117.1 | 4.69 | 119.0 | 15.63 | 10083 | 36.3° | Flat |
| LRG (Ctr) | 4.47 | 113.5 | 4.45 | 113.0 | 14.68 | 9469 | 38.6° | 50/50 |
View the FCS Fin Data page for Base/Depth/Area/Foil information.
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Ex: Shipping and return policies, size guides, and other common questions.