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| FCS Fin Size Chart | Fin Size |
| Under 120lbs | XS |
| 140 - 155lbs | M |
| 165 - 200lbs | L |
| 190lbs+ | XL |
| Futures Fin Size Chart | Fin Size |
| 75 - 115lbs | XS |
| 105 - 155lbs | S |
| 145 - 195lbs | M |
| 180lbs+ | L |
| Longboard Fin Size Chart | |
| Board Size | Fin Size |
| 6' - 6'11" | 6" +/- |
| 7' - 7'11" | 7" +/- |
| 8' - 8'11" | 8" +/- |
| 9' & up | 9" +/- |
$125.00
Overview: Matt 'Mayhem' Biolos's signature template delivers a lively combination of drive, hold and maneuverability. This versatile fin will feel reliable out on the open face or tight in the pocket.
Ideal Conditions: A wide range of conditions, particularly good in critical overhead waves.
Board Types: Designed to fit the FCS II Fin System. Performance shortboards and hybrid models.
Fin Family: Reactor: Find Speed. Speed, tight turns & snaps.
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